Thread: Manual Transmission Fluid: No service is required???
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Old Jun 8, 2012 | 11:45 AM
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harbor
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Joined: Dec 2004
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From: Rochester Hills, MI
Default Re: Manual Transmission Fluid: No service is required???
Originally Posted by Indelibility
Sorry to bring this thread back from the dead. I'm looking at doing a flush/fill of my tranny fluid as well using Royal Purple 5W-20 synthetic. Only issue is the manual calls for engine oil meeting API SL or GF-3...and Royal Purple is API GF-5.

Wouldn't that harm the tranny? Especially the synchros?
Any brand name SN - rated 5W-20 synthetic will work well: RP, Pennzoil Platinum, Mobil 1, Amsoil, etc...
I switched to Mobil 1 EP this Spring with a good result.
 
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