You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join HDForums.com community today!
Well my new '42 flathead is here and I want to perform all the usual oil changes and etc. Can I use synthetic or should I stick with dino? Will 20w50 be ok? My manual (a dept of defense reprint) says I should use at least 72 octane fuel (wow). Will the higher octanes of modern fuels be a problem? Should I add some sort of lead substitute to the fuel?
thanks for any and all replies.
This ad is not displayed to registered and logged-in members. Register your free account today and become a member on HD Forums!
I would get in touch with a good Oil Rep ... think could be critical what you pick and choose although 20W50 Dino seems within Reason .. I would try unleaded 87 Regular for gas .. Amoco proved in the 50's that Vehicles didn't need lead in fuel to run properly..
__________________
2008 Electra Glide Stage 1, Ness Big Sucker Vance and Hines True Duals... 2001 Sportster 883>1200 Stage 1
It wouldn't hurt to use the lead substitute. I use it in all of mine that still have the original valve seats. Depending on the temperature I would use straight 50 or 60 weight oil but thats just my opinion. The higher octane shouldn't be a problem. Post some pictures of your new ride.
__________________
57 FLH
68 FLH
72 FLH killed 12/15/08 by an SUV
75 FXE
69 LE
Lű cre (kər) n. {OFr. Lucre, from L. Lucrum, gain. Riches; money: now chiefly used in a humorously derogatory sense; as in Filthy Lucre
Question about oils/fuel for '42 WLA
