99 RON Tesco fuel....and RICA 304

[Babybadger]

I remember when I had my trip to VT in Nov 2004, Adam and Hamish expressly said 'avoid all supermarket fuel unless absolutely necessary'!

So what is the verdict now? Is it Optimax , BP ultimate or Tesco's 99 RON?

[madness]

I have been running on Tesco super last few months and she's running sweet as a nut. And its cheaper !

[Andrew]

I'm very happy running on 99RON @93ppl.
264bhp & 318lb/ft tourque where my recent results whilst running on it and thats just on a crappy map (not RICA).

[volvotuning]

I remember when I had my trip to VT in Nov 2004, Adam and Hamish expressly said 'avoid all supermarket fuel unless absolutely necessary'!

So what is the verdict now? Is it Optimax , BP ultimate or Tesco's 99 RON?

I'll be honest, we haven't done any tests with this fuel. The "avoid super market fuel" was really to stop people putting in any old crap on a tuned engine.

Adam.

[Goof]

Bit like drinking supermarket own-brand lager compared to Stella ;)
(Has Hamish recovered yet?;))

[Babybadger]

I'll be honest, we haven't done any tests with this fuel. The "avoid super market fuel" was really to stop people putting in any old crap on a tuned engine.

Adam.

Like the BP ultimate diesel I started to put in it after the RICA :slap: Lucky it was only 2.5 litres on an empty tank!

[Simon]

Tesco 99 Ron fuel is the highest grade fuel currently available in the U.K. more than Shell Optimax at 98 Ron and if the fuel tests carried out by Fifth Gear last week? are anything to go by it will give you some extra :bud:

[Engineer]

I'm very happy running on 99RON @93ppl.
264bhp & 318lb/ft tourque where my recent results whilst running on it and thats just on a crappy map (not RICA).Why is it a crappy map then? ROFLMSO Im going to be dangerous now....................;)

[Babybadger]

I'll be honest, we haven't done any tests with this fuel. The "avoid super market fuel" was really to stop people putting in any old crap on a tuned engine.

Adam.


I dunno if any of these are nearby to VT

http://www.greenergy.com/products/99_octane_locations.html

Good luck, I may be up for the guinea pig effect

[volvotuning]

I've been looking into the Tesco 99 RON. It appears that although the RON is 99, the actualy quality of the fuel is not as good as Shell Optimax. It looks like the Tesco fuel has additives that has given it the higher octance rating. Judging by the contents of the fuel, it looks like these additives have been added to pay less duty on the fuel and therefore make it cheaper at the pumps.

I will keep you posted as there is a fair bit of research still to do. These are just initial findings.

Adam.

[Andrew]

Adam I'd be interested in your source of information....

I'd also be interested in your thoughts on how this will effect the engine.

i.e. if it takes over 100k to do any kind of damage I'll take the risk. :)

I think to state supermarkets fuel aint as good is a fair comment. They want cheap plentiful fuel. Optimax claims to clean your engine etc but we have to put it in context. i.e. the number of miles or the time frame. The petrol industry rarely publishes this information.... in context means less £££ at the pumps - it's all about perception.

Ac.

[swordy21]

I don't know if it's just me looking to find a reason, but I used to use Tesco 99 and Optimax almost interchangably, however I do feel that on Optimax the car runs more smoothly and quieter, on Tesco it seems everso slightly more aggressive, and a bit noisier/lumpy. As not doing high mileage inthe T5 anymore am back on Optimax at 91.9p/L, which oddly enough is the same as Tesco 99 just up the road in Bristol.

[Simon]

The Tesco 99 RON fuel has the highest Bio Ethanol content which helps give it the highest RON rating and also makes it more Eco Friendly by lowering emissions.

[weasel]

maybe this'll help

http://www.opsi.gov.uk/si/si1994/Uksi_19942295_en_2.htm

[volvotuning]

The Tesco 99 RON fuel has the highest Bio Ethanol content which helps give it the highest RON rating and also makes it more Eco Friendly by lowering emissions.

It's not just bio-ethanol in there! The ethanol is part of the problem. If you run a car on the dyno with an ethanol mix and check the AFR compared with straight fuel, you will get very strange readings! But this test was done using 25% mix.

Anyway, as mentioned earlier, I have a guy on the case who will let me know his findings...

Adam.

[weasel]

more here on fuels http://www.trunkerton.fsnet.co.uk/lies_of_unleaded_petrol.htm

[weasel]

i didn't see the programme but i'm linking back for reference
http://www.volvot5.co.uk/forums/showthread.php?t=5716&highlight=optimax

what i don't get is that there would be no improvement from optimax, super on the lower rated car. why?

and if you have say a rica 280/tme/bsr equivalent and use optimax does that mean you get say 300hp but 280 if you use 95ron?

i'm not entirely convinced that the supermarket fuels are no good though because they and their products are just as tested regulated as anyone else and with high volume sales the fuel is likely to be fresher than some where that has a delivery every other week.

[volvotuning]

Even when standard you should use 98 RON on a turbo car. If you read the Volvo owners manual it even says so there. It says 95 RON is ok for normal driving, but for maximum performance, economy, and hard driving, you need to use 98 RON. The difference is more apparent when tuned, and depends what fuel you are optimising for.

Adam.

[Andrew]

Interesting article form Piston Head mob :
http://www.pistonheads.com/gassing/topic.asp?f=57&t=221733

[weasel]

dunno what they mean :dunce: but green energy have these

http://www.greenergy.com/products/technical_product_info/product_specs/99_octane.pdf

http://www.greenergy.com/products/technical_product_info/test_results/99_octane/99octane_14.10.2005.pdf

http://www.greenergy.com/products/technical_product_info/test_results/99_octane/99octane_31.08.2005.pdf

[Engineer]

If you want to know who supplies Tesco click on first link.

Second link is (Adobe) specification for Tesco 99ron. (You may have to copy and paste to Address and hit go).

Third link is (Adobe) specification for Shell Optimax. (You may have to copy and paste to Address and hit go).

If you can't download e-mail me and I will send them.

www.greenergy.com/1024_768.html (http://www.greenergy.com/1024_768.html)

www.greenergy.com/products/technical_product_info/product_specs/99_octane.pdf

www.imeche.org.uk/formulastudent/pdf/Optimax.pdf

[Babybadger]

Even when standard you should use 98 RON on a turbo car. If you read the Volvo owners manual it even says so there. It says 95 RON is ok for normal driving, but for maximum performance, economy, and hard driving, you need to use 98 RON. The difference is more apparent when tuned, and depends what fuel you are optimising for.

Adam.

Adam, as you may remember , my T5 is from Saudi and is a left hooker. It says inside the fuel flap that it 'can be run on leaded fuel ' and states it must be a minimum of '91 RON'. So this is really confusing, not that I would be a tw%t :dunce: and put anything less than 95 RON Unleaded from a reputable petrol station. ( like when I accidently put 2.5 litres of ultimate diesel in the tank! )

A friend of mine has got a mondeo st220 ( I will council him for buying a ford later ), he says that fuel companies by law have a 10% tolerance on there petrol pumps and he says Tesco is one of the biggest ripoffs. This means that they,by law, only have to give you 9 litres or over of fuel if you pay for 10! He says that BP are bang on the nose as is shell!

Have I started something here? :slap:

[volvotuning]

91 RON means ABSOLUTE MINIMUM. That means it's the minimum fuel grade you should use in the car, and again if you read the manual, it tell you about that too. Course, I'm talking UK spec here.

Adam.

[Andrew]

I think the debate could go on and on for ever.

We either a) run a car on optimax for 3-4 tanks then stick it on the dyno then run the same car on tesco 99 and then stick it on the dyno and compare or just live with our personal preference :)

I don't have any shell stations near me. BP Ultimate 97 RON is the best I can find of the "branded" garages. So I have been using 99 RON Tesco stuff (10 or so tankfulls now) and have been happy with it. I agree I feel as though I've got more lower end tourque and while on 99ron the dyno showed 318lb/ft. The unfortunate bit is I can't compare that to anything.

Anyway - I'll be sticking to Tesco 99RON given I'm happy with the results both performance and economical wise.

Personal preference!

[01c70t5]

Just to jump in here... I believe BP supply Sainsbury's (or they do near us, having seen the delivery sheets).

They pump 97 RON Ultimate as Sainsbury's Super, and it's a hell of a lot cheaper than Shell. Can't say I've noticed much difference yet, but I'm only on the 2nd tank.

[Simon]

91 RON means ABSOLUTE MINIMUM. That means it's the minimum fuel grade you should use in the car, and again if you read the manual, it tell you about that too. Course, I'm talking UK spec here.

Adam.

That is a US rating. They rate their fuel differently to us in Europe. If I remember rightly 91=95 92=97 and 93=98.

[volvotuning]

That is a US rating.

Yes, I know ;)

It matters not anyway, the car in question is an import, now running in the UK. 98 RON is what it will run best on.

Adam.

[Simon]

or even better on 99 RON :biggrin:

[volvotuning]

Quoted from an email...

As regards ethanol (C2 H5 OH ) it has a high unleaded RON ;Ithink about 110 and a big gap -called the 'sensitivity' down to the MON which I vaguely recal as about 90. That's at 100% but when it is blended into hydrocarbon you don't get a proportional shift in RON. e.g. if you took a hydrocarbon petrol of RON 100 and blended it 50/50 with ethanol say 110 the resulting RoN will not be 105 but something less but I'm not sure how much and I need to look at my papers . I don't know what Tesco are doing.Because it is quite a complex business to blend ethanoll accurately to a given RON with petrol, I would guess that Tesco are taking an unleaded of 99 and simply taking their tankers to a ethanol storage depot and adding 5% ethanol to the load and 'giving away 'the gain in RON -about 0.5 RON as a kind of cushion to be well over 99. What they are after is the tax/duty credit from the ethanol because it is not taxed and not passing it on to the motorist.I don't recall the uk tax element of petrol but if it is say 75 p/litre and they are getting 5% of that tax free, equals about 4p/ litre that is a nice little earner.
Shell has no tax/duty free material there so it is not getting any gain. I don't know tesco's marketshare but say it is 5% of uk 30million tons equals approx30 bii. litres= at 4p/ litre for 1.5 billion litres =£90million if applied to all Tesco ;if only 10% of tesco has Ethanol then it's still around £ 9million which the govt is foregoing and we the public don't benefit at all, but French farmers do because they get paid for producing what would have been unsaleable wine because of the excess supply. I won't vouch for my figures but assuming the arithmetic is right they are in the order of magnitude.
Re the a/F
tHE EFFECT WILL BE TO WEAKEN THE MIXTURE-2 MECHANISMS if about 3%of the fuel is O2(limit in spec is 2.7%) then that O2 will add to the O2 in the air and will also reduce the burnable fuel .At around the 'chemically correct A/F -about 15air/1fuel it will weaken the mixture by about 3% . Going richer worsens the effect by adding more O2.It will be a small efect on power but measurable and could be critcal at say close to the a/f associated with max knocking tendency putting an engine from say no knock to just into knock.

Adam.

[volvotuning]

or even better on 99 RON :biggrin:

I agree, 99 RON is better as then you have a greater chance of it being at least 98 RON. However, if you have software optimised for 98 RON, then putting in 99 RON or higher shouldn't make any difference.

Adam.

[Simon]

I don't understand why it shouldn't make any difference? There are loads of Octane boosting additives on the market which people use that must give them more power?

I know loads of people who have had their cars mapped with a 'recommendation' to use a MINIMUM of 98 RON but use the Tesco 99 RON and feel a significant increase in power.

If you buy Shell Optimax in Europe (they call it something esle can't remember what) then it is rated at 100 RON and again I know many people who have used this fuel and seen quite a noticeable increase in power.

[volvotuning]

It's quite simple. If a tuner has told the customer that they need a minimum of 98 RON, but continue to get improved performance on 102 RON, that means that the ECU programming has been optimised for fuel grades over 98 RON, ie the ignition timing, fueling and boost characeteristics of the software can adapt to take advantage of this fuel grade. Also, under the most severe conditions, there won't be any power loss due to the ignition timing being retarded on sensing knock.

The above obviously assumes that the fuel grades are what they say they are.

Adam.

[Simon]

Does that mean RICA upgrades will only run properly on 98 RON fuel?

[weasel]

on tax incentives: http://www.greenergy.com/company/downloads/biodiesel_bioethanol_policy_Feb03.pdf and there's some other enlightening stuff in there too. the question has to be asked where they are having the independent tests done... at the pumps? certainly, fuel samples used to be taken from garage forecourts not sure about now and i wonder about tolerance within the bs standard.

98 or 99 ron significant real or imagined performance gain?

[volvotuning]

Does that mean RICA upgrades will only run properly on 98 RON fuel?

It means that the RICA upgrades optimised for 98 RON need 98 RON for maximum performance and economy, and if you put 95 RON in the tank and get a load of knock, then the ECU will back off the ignition and boost for protection, and sacrifice power in the process.

Adam.

[Goof]

So old smelly chip oil is no good then?
;)

[Simon]

It means that the RICA upgrades optimised for 98 RON need 98 RON for maximum performance and economy, and if you put 95 RON in the tank and get a load of knock, then the ECU will back off the ignition and boost for protection, and sacrifice power in the process.

Adam.

Yes I know that, but will RICA tuned cars not run better on fuel with a higher octane rating than 98 RON?

[BlackBeast]

Yes I know that, but will RICA tuned cars not run better on fuel with a higher octane rating than 98 RON?

To take advantage of a higher octane rating fuel, i would have thought that the rica ecu or any ecu for that matter would need to be re-mapped (advance/retard ignition incertain places of the rev range) to gain any noticable power!?!

[volvotuning]

Yes I know that, but will RICA tuned cars not run better on fuel with a higher octane rating than 98 RON?

Correct, assuming (of course) that the 98 RON is definately 98 RON, and also that there are no additives in the fuel that affect the air / fuel mixture.

Adam.

[Simon]

To take advantage of a higher octane rating fuel, i would have thought that the rica ecu or any ecu for that matter would need to be re-mapped (advance/retard ignition incertain places of the rev range) to gain any noticable power!?!

Most modern ECU's can adapt. I don't think people who use Octane boosters get their car re-mapped every time they use it and I doubt they pay lots of money for it just so they can say they have octane booster in their tank.

[volvotuning]

Most modern ECU's can adapt. I don't think people who use Octane boosters get their car re-mapped every time they use it and I doubt they pay lots of money for it just so they can say they have octane booster in their tank.

Simon,

You are correct in saying that most modern ECUs adapt. Even the older ones do. However, the ECU (on the Volvos for example) will not adpat beyond the optimum settings that are programmed in the map. So, assuming that all conditions are optimum and fuel grade is correct and the ECU does not need back anything off, putting higher octane fuel in won't make a difference.

Like I said, the people who use octane booster either do so because their maps are optimised for higher than 98 RON, or they want to ensure that the octane is a guaranteed 98 RON, and avoiding problems with pumps that have been filled incorrectly, or some other fuel quality issue.

If adaption worked like you think, then putting in 117 RON in a bog standard car will produce loads more power. It doesn't.

Adam.

[chriskay]

On the subject of octane boosters, has anyone tried Toluene? I think it has an octane rating of about 120, & if mixed with 95 RON at about 9 to 1 should bring the blend up to 98 RON. I think some guys with 480 Turbos were going to try it.

[Greenergy]

Hello I'm the petrol blender at Greenergy that makes the 99 octane petrol for Tesco. The Greenergy web master noticed a bit of a debate in these pages so I thought I'd let you know a few facts to demystify the discussions.

Greenergy is one of the largest producers of 95 octane petrol in the UK blending about 2 billion litres per annum. As I mentioned we also supply the 99 octane for Tesco. The web site is www.greenergy.com

The 99 octane is a completely distinct blend, it is not just a higher octane petrol with a bit of bioethanol added to boost RON as has been suggested.(Ron stands for "research octane" the headline figure most often quoted when comparing petrols and an indication of part throttle driving performance).

The 99 octane is made from the highest quality petrol components available, which includes super high octane reformates and alkylates (you can find out more about these types of oil refinery components by typing them into google and looking at specialised oil industry websites). Bioethanol is also added for performance and environmental reasons, in particular it helps keep the cost of octane affordable. Without the bioethanol the production of a 99 octane grade would not be economically viable.

We don't make performance claims about 99 octane prefering our customers to try it and have a good experienece. This policy is because the Advertising Standards Agency require an amazing amount of (expensive) comparative testing in order to do so, the cost of which would have to be picked up on the price of the fuel (and a key product benefit we are aiming for is low prices).

However in response to a few comments made In the pages I can say the energy content per litre (which effects fuel economy) is extremely interesting - read into this what you will! Also the oxygen content normal meeting the EN228 standard (2.7% max) and the sensitivity (Ron / Mon spread - Mon being the Motor Octane which is a good indication of full throttle performance) is also good. We also have about double the additive package of normal 95 petrol.

Unlike other oil companies Greenergy posts its actual quality certificates to the website. The latest November batch will be on the web site later today.

I hope this helps. Sorry but I'm not available for ongoing discussions. But for latest info check out the website.

Best regards

The Blender

[Simon]

I didn't think if you used 117 RON then you would get an extra 50% power, but if you know where I can get some 117 RON fuel I'll give it a try! ECU's can adapt between parameters, but that's just being silly.

When I get the chance I will try the Tesco's 99 RON stuff and let you know.

[siamblue]

So Adam, Does that mean now you can actually remap our T5's to produce more than 310 bhp? as 99 ron will/should produce more power.

[volvotuning]

I didn't think if you used 117 RON then you would get an extra 50% power, but if you know where I can get some 117 RON fuel I'll give it a try! ECU's can adapt between parameters, but that's just being silly.

When I get the chance I will try the Tesco's 99 RON stuff and let you know.

No simon it's not being silly. Cast your mind back to the 5th gear test. The crappy little normally aspirated car made no extra power on the super unleaded compare to the 95 RON. That's because the ECU is optimised for 95 RON. That's how it works!

Adam.

[volvotuning]

So Adam, Does that mean now you can actually remap our T5's to produce more than 310 bhp? as 99 ron will/should produce more power.

Yes. We've mapped T5s for various octane ratings and there is are power gains with the extra ignition advance you can run.

Adam.

[Babybadger]

I think if you want higher than 100 RON octane , go and visit an airfield! AVGAS is what you need and keep you eyes open for new pistons and valves. :jaw:

[Engineer]

[QUOTE=Greenergy] The Greenergy web master noticed a bit of a debate in these pages so I thought I'd let you know a few facts to demystify the discussions.

Missed post #21 though didn't it mate..........................................

[weasel]

everything you ever wanted to know about but petrol but were too frightened to ask just in case you got an answer!
http://www.faqs.org/faqs/autos/gasoline-faq/

[volvotuning]

Quote taken from that web site, part 3-

"If you are already using the proper octane fuel, you will not obtain more
power from higher octane fuels. The engine will be already operating at
optimum settings, and a higher octane should have no effect on the management
system."

Just to further reinforce the point made earlier.

Adam.

[Simon]

No simon it's not being silly. Cast your mind back to the 5th gear test. The crappy little normally aspirated car made no extra power on the super unleaded compare to the 95 RON. That's because the ECU is optimised for 95 RON. That's how it works!

Adam.

But the Golf GTI and Scooby did... and quite significantly in the case of the Scoobie. We are talking performance related cars here, not Nissan Micra's. :biggrin:

I can only speak from personal experience and talking to many others who have used higher octane fuel in their cars and have noticed a significant difference.

I think we will agree to disagree on this one. :biggrin:

[volvotuning]

Simon, I don't think you understand.

The Golf and the Scooby LOST power on the 95 RON and simply regained what they were supposed to have in the frist place on 98 RON.

You can disagree all you like.

Adam.

[Simon]

Like I said I and many other people I know would disagree with you, but I guess you know your not wrong, so...

[Justin]

Thread moderated and re-opened.

Behave!

[Andrew]

Thread moderated and re-opened.

Behave!

Oh he's so masterful :)
:remybussi

[weasel]

soooo..... tesco sell 99ron that is cheaper to produce at the same price as optimax and do not make any performance claims for the fuel other than it's 99ron. relying on the lack of understanding about the impact of using higher ron rated fuels, they sell lots and laugh all the way to the bank. the fuel is supposedly greener and therefore politically compliant as it uses bioethanol (the wider environmental impact of which has been questioned anyway) but has double the additive package of 95ron which will very likely be producing more toxic effects.

how many cars are optimised to run on 99ron? not many i'd think given it's only very recent availability and performance enhanced cars are already amongst the highest automotive emmiters of toxins and pollutants as they are not exactly fuel economical anyway.

i agree adam it sounds slightly dodgy, can't blame em i suppose but unless they're prepared to pass on the benefits, i think i'll leave it thanks. so was the 5th gear test loaded by using a car that couldn't show a performance improvement in the first place?

[weasel]

here's the link to the results http://fifthgear.five.tv/jsp/5gmain.jsp?lnk=601&featureid=143

adam will you be doing the experiement andrew suggested?
:worthless

[Simon]

http://www.saabcentral.com/forums/showthread.php?t=62447

http://www.bsrab.se/product_news/18/

[volvotuning]

What's written there confirms everything I said.

Adam.

[volvotuning]

here's the link to the results http://fifthgear.five.tv/jsp/5gmain.jsp?lnk=601&featureid=143

adam will you be doing the experiement andrew suggested?
:worthless

We're regularyly doing experiments. Just a case of finding the time for the next one! To do this experiment properly you need to measure more than just power. Fueling, boost, and ignition timing also needs to be measured to see what's actually happening.

Adam.

[Simon]

What's written there confirms everything I said.

Adam.

The way I read it is that the engine management system is capable of running on 'normal' petrol without suffering and ill effects but is also capable of running on much higher grade fuel taking advantage of the power increases the higher grade fuel offers without any re-mapping.

[volvotuning]

Essentially, the way you read it is correct. But the reason why is stated in the following section of the article you posted -

"As its name suggests, the Saab 9-5 BioPower not only offers purer power, but more of it. Because Saab’s turbocharging technology and engine management systems make it possible to take advantage of bioethanol’s higher octane rating, an impressive 20 per cent gain in brake horse power (bhp) and 16 per cent growth in torque can be enjoyed when the car runs on E85 compared to when running on regular petrol."

Basically, this means that the ECU mapping in this car can take advantage of this fuel grade. Also, SAAB use different management to Volvo, and use different knock control too.

Adam.

[weasel]

is the ecu a 4.3, 4.4, motronic on the saab then? :-) that faq thingy says most cars can handle around 7 ron difference.

it'd be interesting to see other parameters too such as quarter times, on the road consumption etc

[T5Rdragon]

On the subject of octane boosters, has anyone tried Toluene? I think it has an octane rating of about 120, & if mixed with 95 RON at about 9 to 1 should bring the blend up to 98 RON. I think some guys with 480 Turbos were going to try it.
That'd be um, me then, along with Rich, Lee and Wayne. Still investigating; needs a hazchem HGV licence to move around you see. Still, we have such an item amongst us ;) Just waiting for Rich to settle into new house and get back online, as he can get the stuff...

[volvotuning]

is the ecu a 4.3, 4.4, motronic on the saab then? :-) that faq thingy says most cars can handle around 7 ron difference.

it'd be interesting to see other parameters too such as quarter times, on the road consumption etc

Most SAABs use Trionic.

Most cars probably can handle 7 RON difference, but most should not be run on less than 95, and most are not optimised for anything higher than 98.

Adam.

[Engineer]

Quote:
Originally Posted by chriskay
On the subject of octane boosters, has anyone tried Toluene? I think it has an octane rating of about 120, & if mixed with 95 RON at about 9 to 1 should bring the blend up to 98 RON. I think some guys with 480 Turbos were going to try it.



That'd be um, me then, along with Rich, Lee and Wayne. Still investigating; needs a hazchem HGV licence to move around you see. Still, we have such an item amongst us ;) Just waiting for Rich to settle into new house and get back online, as he can get the stuff...Used this stuff back in the 70's when 101ron (5 Star) was discontinued. Never understood what's detailed below way back then which explains a lot.......... LOL.

The name toluene was derived from the older name toluol that refers to tolu balsam, an aromatic extract from the tropical American tree Myroxylon balsamum, from which it was first isolated (that’s got to p-ss off the greens)

Toluene occurs naturally at low levels in crude oil and is usually produced in the processes of making petrol.

Inhalation of toluene fumes can be intoxicating (nice) but in larger doses nausea-inducing (not so nice). Chronic or frequent inhalation of toluene over long time periods leads to irreversible brain damage (that’s a petrol head then).

The toxicity of toluene can be explained mostly by its metabolism. As toluene has very low water solubility, it cannot exit the body via the normal routes (urine, feces, or sweat, understand that bit).

It must be metabolized (look it up) in order to be excreted. The methyl group of toluene is more easily oxidized by cytochrome P450 than the benzene ring (lost me now). Therefore, in the metabolism of toluene, 95% is oxidized to become benzyl alcohol (that’s a plus then).

The toxic metabolites are created by the remaining 5% that are ring oxidized (that sounds nasty) and then most of the epoxides become glutathione conjugated epoxides (What?).


In a nutshell toluene will severely damage your human cells but look kindly on your motor.

[Simon]

All ECU based Saab's run some version of Trionic. The 9000 CS models, new generation 900's 1994 to 1998 and 9-3's 1998 to 2000 run Trionic 5, all Saab 9-5's and 9-3 2001 to 2002 run Trionic 7, The 9-3 Sports Saloon and all new Turbo Charged Vauxhalls run Trionic 8. Saying that the brand new Holden based 2.8 V6 Turbo runs a Bosch based ECU.

Some more interesting information on this subject can be found here...

http://www.ecutek.co.uk/tuning/ignition/

[rottertron]

Toluene, is a benzene ring with a methyl group added, nice and carcinogenic. Just had a look in the Aldrich catalogue, £175 for 20 litres.

How about trying some trinitrotoluene!!

[arbee]

An interesting article in this month's 'EVO'. go read... :)

[lil_me]

I added some testing done in another mag (post in MODIFICATIONS) Will look out for the article when we get evo this month tho