new filter.....what a difference!

**JamesT5** · Friday 27th December 2013, 19:27

Originally Posted by p fandango

i think the filter was ££££

I've got Martin's 'original' cone filter on my car after I made a deal with him at Haynes last year. The only issue is I don't have a dishwasher to wash it in, especially a brand new one.

**p fandango** · Friday 27th December 2013, 19:30

Originally Posted by JamesT5

K&N air filters are supposed to be the best from what I've read. Once I've got all the bits and pieces done on the car (I'm getting there slowly), I plan to start modifications to bring the performance up a rung or two. I'll be looking seriously at a K&N induction filter but please feel free to suggest better filters if you know of any.

I also want to go down the silicone pipe route and uprated Intercooler in the long run but to be honest, I think I'm a fair way off that at the moment.

i had a K&N 57i, i wouldn't bother with them again. Going to a universal Pipercross foam cone made a bigger difference

**foammanmark** · Friday 27th December 2013, 19:37

Originally Posted by p fandango

i had a K&N 57i, i wouldn't bother with them again. Going to a universal Pipercross foam cone made a bigger difference

I fitted that to my p1 V70 T5, and it might just have been a coincidence, but the maf sensor went immediately after fitting it. I now use JR panel and cones, and plan to stick with them. As soon as I notice my mpg is dropping, I clean them, which is more often than 10,000 miles.

**JamesT5** · Friday 27th December 2013, 20:57

Originally Posted by foammanmark

I fitted that to my p1 V70 T5, and it might just have been a coincidence, but the maf sensor went immediately after fitting it. I now use JR panel and cones, and plan to stick with them. As soon as I notice my mpg is dropping, I clean them, which is more often than 10,000 miles.

interesting, my MPG has dropped by around 2 - 3 MPG, perhaps I should clean the air filter.

**M-R-P** · Friday 27th December 2013, 21:00

Just squirt it with some flash, wait 5 minutes and blast it from the inside with the shower mate.

**JamesT5** · Friday 27th December 2013, 21:21

Originally Posted by M-R-P

Just squirt it with some flash, wait 5 minutes and blast it from the inside with the shower mate.

Thanks, I'll give that a try.

**foammanmark** · Friday 27th December 2013, 21:27

Originally Posted by JamesT5

interesting, my MPG has dropped by around 2 - 3 MPG, perhaps I should clean the air filter.

I reckon 5-7,000 and mine need a good cleaning. I re-oil as well, but very carefully, and I know some peeps don't re-oil.

**Harvey** · Friday 27th December 2013, 21:36

Originally Posted by JamesT5

interesting, my MPG has dropped by around 2 - 3 MPG, perhaps I should clean the air filter.

Good chance it's the winter tyres,more grip = more drag.

**graemewelch** · Friday 27th December 2013, 21:39

Originally Posted by JamesT5

interesting, my MPG has dropped by around 2 - 3 MPG, perhaps I should clean the air filter.

Originally Posted by Harvey

Good chance it's the winter tyres,more grip = more drag.

my mpg drops by about 3 mpg with my winter rims on

**M-R-P** · Friday 27th December 2013, 21:40

With the mileage James does, I'd say the filter needs a clean.

**stribo** · Friday 27th December 2013, 21:46

Don't forget with the cold weather mpg drops anyway, as the warm up cycle is longer, and heater going full blast and heated rear window/seats takes power as well.

**JamesT5** · Friday 27th December 2013, 21:46

Originally Posted by Harvey

Good chance it's the winter tyres,more grip = more drag.

No, it was the same before tyre were fitted.

**JamesT5** · Friday 27th December 2013, 21:48

If I drive like a Granny I can squeeze 30 - 31 average mpg out of it at a push and that's resetting the trip computer for each trip. I usually average 27 - 28 mpg, the terrain around here is very 'up and down' though.

In the summer I could get 33 -35 mpg.

**foammanmark** · Friday 27th December 2013, 21:49

Originally Posted by JamesT5

No, it was the same before tyre were fitted.

I'd say, if in doubt, clean the filter.

**JamesT5** · Friday 27th December 2013, 21:52

Originally Posted by foammanmark

I'd say, if in doubt, clean the filter.

I have noticed a few flies building up on it.

Aside from the fact that you'd wreck your engine rather quickly, I wonder how much more get up and go the car would have initially, if the air filter was removed completely? Anyone ever tried it?

**graemewelch** · Friday 27th December 2013, 21:52

i say if your watching your mpg you shouldnt be driving a t5. our second car is a 307 hdi so we dont need to worry about it.

**graemewelch** · Friday 27th December 2013, 21:54

Originally Posted by JamesT5

No, it was the same before tyre were fitted.

has it dropped since you changed your oil.

**foammanmark** · Friday 27th December 2013, 21:55

Originally Posted by graemewelch

i say if your watching your mpg you shouldnt be driving a t5. our second car is a 307 hdi so we dont need to worry about it.

I know what you're saying makes sense, but I drive my R or T5 as economically as possible Mon-Fri for my work mileage, but then put my foot down more at the weekend. Although after saying that, as you know, I am getting a diesel.