SuzukiSavage.com - which fork oil?

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which fork oil? (Read 143 times)

jabman Senior Member Offline Posts: 411 England Gender:	which fork oil? 09/15/09 at 01:47:40 im replacing the fork seals due to leaking oil from the top of my right fork . Suzuki manual states to use Suzuki #15 oil. would i be ok with synthetic 10w fork oil?
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: which fork oil? Reply #1 - 09/15/09 at 04:06:35 Synthetic is better .but don't go thinner the synthetic will make it move like thinner oil. I use Klotz racing synthetic 15 weight.
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LANCER Serious Thumper Alliance Member Offline Savage Beast Performance Parts Posts: 10659 Oklahoma Gender:	Re: which fork oil? Reply #2 - 09/15/09 at 05:23:22 I like 20wt Amsoil fork oil because of the firmer damping feeling.
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mikestrikes Full Member Offline SuzukiSavage.com Rocks! Posts: 236 Decatur, AL Gender:	Re: which fork oil? Reply #3 - 09/15/09 at 08:42:03 I use Wal-Mert brand ATF !
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: which fork oil? Reply #4 - 09/15/09 at 09:30:12 Don't use Fork oil in automatic trans it will make it slip,Its to slippery for that.
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sakara Senior Member 2005 No Login Offline Thumpalicious Posts: 313 Lockport, NY Gender:	Re: which fork oil? Reply #5 - 09/18/09 at 08:58:25 I've used Mercon/Dex atf without issue on a few bikes. Bang for the buck. If price doesn't matter, though, using 15 or 20w is a good idea as said.
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PTRider

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Re: which fork oil?
Reply #6 - 09/18/09 at 10:19:17

Changing the viscosity of the fork oil changes the damping characteristics.

Standard ATF is about 15 wt. It doesn't matter which variety...Dexron-III, Mercon-V, etc., and the brand doesn't matter. The newest low viscosity ATFs like Dexron-VI are about 10 wt.

Fork oil must have a very high viscosity index...thickens less when cold and thins less when hot. You don't want a damping change from first thing on a cold morning to hard riding on a hot afternoon. Synthetic oil has a higher VI than conventional oil.

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