Thoughts on fluids
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For the Harley. 15-50 Mobile is fine for engine. Use Mobile V twin if really hot since it has more additives. (I personally think they settle out if bike sets...and for sure,.shake container before using) SYN 3 is fine. Use Formula + straight weight gear oil with no detergent for transmission and primary. No filters there, so from an engineer standpoint, non detergent is best. Harley is the only one who has that spec.
Last edited by Jackie Paper; May 10, 2019 at 12:13 PM.
The Best of Harley-Davidson for Lifelong Riders
Don't be leery of posting on this forum; on balance the more knowledgeable members are always willing to help out. The reason you got the responses you go to your lubricant questions is really simple. Oil is not a complicated issue but there have been so many questions asking about oil choices, weights, brands, syn vs conventional, etc. that can be answered with a bit of homework that the first reaction by many forum members is to either ignore the question, particularly if the question is the posted by a "new" member that could be a troll. Or to respond as some did, myself included, with "here we go again", another oil thread, "how many times do we have to answer this question". No malice or disrespect is intended, those replies are more of a reflex than a thoughtful reply.
So, don't be offended, keep coming back with your questions and you will find plenty of knowledgeable advice and help from this forum. That is the reason I replied a second time, so you would not get discouraged and understand some of the " oh no" replies.
Another reason is....I’m trying to save some F’n money. Believe you me folks I do understand the functions of how that **** works. I really want to save some coin. Because of folks as yourself I’ll come back. Stay groovy😎
















