Hi there does anyone know what oil your supposed to use in the gearbox of a manual 850r? Read so many opinions,bit confused now I put some 75w90 synthetic in at work and the gear change is stiff as now!
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Thread: Gearbox oil
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Sunday 13th July 2014, 11:01 #1Senior Member
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Thanked 52 Times in 49 PostsGearbox oil
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Sunday 13th July 2014, 11:07 #2Ghost Rider
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Thanked 1,921 Times in 1,186 PostsI ran my m56 box on JCB ep90 gear oil, the M66 box has industrial ep90 gear oil and works a treat
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kyboy (Monday 14th July 2014)
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Sunday 13th July 2014, 17:17 #3Trader
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Thanked 2,863 Times in 2,155 Posts75w80 mineral i thought
Originally Posted by kyboy
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Sunday 13th July 2014, 17:23 #4Senior Member
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Thanked 1,004 Times in 790 PostsMillers oil has a reg number look up, 75/80 semi I think they recommend
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Sunday 13th July 2014, 17:25 #5Senior Member
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Sunday 13th July 2014, 19:48 #6Trader
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Thanked 2,863 Times in 2,155 PostsJust looked in the Handbook, 75w80 synthetic
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kyboy (Monday 14th July 2014)
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Monday 14th July 2014, 07:27 #7Senior Member
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Thanked 168 Times in 132 Postsive just done mine on saturday with 75-90 semi and its fine, infact my gearbox feels better.
i looked on auto data and it did say 75-80, i just could'nt get hold of any and i had already dropped the oil
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kyboy (Tuesday 15th July 2014)
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Monday 14th July 2014, 11:29 #8Gearbox Killer
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Thanked 2,673 Times in 1,797 PostsI think in my case any oil has to be better than none ...... lol
30 miles of silent running ... till it ate it own layshaft bearing.... think I'll be remembering a drop of 75w80 next time
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kyboy (Tuesday 15th July 2014)
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Tuesday 15th July 2014, 13:39 #9Senior Member
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Thanked 52 Times in 49 PostsThat's what I did oils free at work it's BMW 75w90 and frees the best price Originally Posted by no1tosh
ive just done mine on saturday with 75-90 semi and its fine, infact my gearbox feels better.
i looked on auto data and it did say 75-80, i just could'nt get hold of any and i had already dropped the oil
dropped the oil and it was a dark brownish and quite thick,the new synthetic as always looks v-thin and the drive home the gear selection felt really stiff! The next day and since it feels fine!!!???
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Sunday 10th August 2014, 15:43 #10Senior Member
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Thanked 59 Times in 45 PostsI think im going to use the genuine Volvo stuff - I've read everything from 75/80, 75/90, 5w30 engine oil, DexronII, Dexrin III, synthetic, semi synthetic and full mineral.
My brain now hurts so im going to leave the choice to the original designers of the gearboxes and spend that little more to put in the right stuff, so I don't have to think about it any more!!There's only one Wally Dog....
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