trials_guy Posted August 3, 2009 Report Share Posted August 3, 2009 Hey guys, Im about to replace my fork oil seals, I have seen that the recomended weight is 7. Im finding it pretty hard to get hold of 7 and i was wondering if 7.5 will be ok? I'm aware it'll be a tiny bit slower rebound but will it nacker the internals of my forks? Thanks alot. Quote Link to comment Share on other sites More sharing options...
jse Posted August 3, 2009 Report Share Posted August 3, 2009 Hey guys, Im about to replace my fork oil seals, I have seen that the recomended weight is 7. Im finding it pretty hard to get hold of 7 and i was wondering if 7.5 will be ok? I'm aware it'll be a tiny bit slower rebound but will it nacker the internals of my forks? Thanks alot. You can try using Dexron ATF. It's about 7.5 weight and has the fork oil properties you need. I doubt anyone on this list could tell the difference between 7 and 7.5 weight when riding the bike. Advertized "weights" in oils are an general approximation only, not an absolute measurement. There are other ways to rate viscosity other than the SAE "weight" so that's why you see other numbers on a bottle of fork fluid and they relate to SUS (Saybolt Universal Seconds) and "VI" (Viscosity Index) and an example of that would be a "85/150" marking on the bottle. Try the Dexron, you'll like it. Jon Quote Link to comment Share on other sites More sharing options...
dave dix Posted August 3, 2009 Report Share Posted August 3, 2009 Good answer jon, i have always used ATF (auto transmission fluid) in my bikes for over 30 years without any problems and its good for clutches also Dave Quote Link to comment Share on other sites More sharing options...
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