Can Mobil 1 20w50 be used in the crankcase too?

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#41

04-04-2011, 09:07 PM

streeteagle

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Quote:

Originally Posted by Iceman24

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..

#42

04-06-2011, 05:49 AM

NoCoLoco

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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.