Transfer box oil - Dexron11D or Dexron 111

Ridesafe said:

Exactly that; it's similar on bikes.....most are very fussy as to oil spec used, as you say, viscosity might be correct, but it's in the composition that matters. Most sports/touring bikes don't like fully synthetic - gives clutch slip, others only run properley on mineral!

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JellySpanners said:

Yes your right, Triumph recommended Mobil 1 and I had nothing but trouble running on it, even the oil light would come on when it was hot, went to castrol GP something ? oil and all was fine including the clutch...

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Ridesafe said:

That's because they had a sponsorship deal with Mobil a few years back, both promoting each other's brand. No-body in the trade would even think of using that ****e on a bike! :doh:

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JellySpanners said:

I wonder if it was like I heard, Dextron III isnt compatible with certain seals used in older systems, a bit like many of the oils Citroen use like LHM etc...

I was told once that it had an affect on seals and o-rings so the even though the viscosity is ok, the composition of the oil isnt, or could there be friction modifiers in it that damage friction material in the older boxes etc... bit like what mollyslip and Wynnns did to the old Mini gearboxes...?

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Ridesafe said:

Yup......that's why they are known as Fowl-up's.......amongst other things lol!

As a point of note, service for warranty is bollox........so long as a "recognised" or better still vat registered dealer/workshop, warranty cannot be made void.

Many this neck of the woods get a bike from a main stealer in town, then go to good local indy thereafter!

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