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-   -   Can Mobil 1 20w50 be used in the crankcase too? (https://www.hdforums.com/forum/general-harley-davidson-chat/627368-can-mobil-1-20w50-be-used-in-the-crankcase-too.html)

streeteagle 04-04-2011 09:07 PM


Originally Posted by Iceman24 (Post 8143659)
Yes...you can put cooking oil in there too, but why? It's a tranny so use what's recommended (GO). I recommend Spectro - spendy, but their 6-speed GO really quieted my 09 FLHX whine.

I just changed my Spectro 6-speed tranny oil after 15K & the drain plug magnet had only a minuscule amount of metal particles. Doing it's job, less wear, less whine..

NoCoLoco 04-06-2011 05:49 AM

I use Spectro 6-Speed (75w140, GL-5) for two reasons:
1. It is specifically formulated for Harley 6 speed trannys.
2. It is what Baker recommends... nuff said.


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