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Jay, Reciprocating aircraft engines have a substantially higher oil consumption rate than do their earthbound cousins. Each aircraft engine manufacturer has a specification for "normal" oil consumption. (read x quarts in x hours) This does not go away. (typically) In W&W's original post, he...

Hi penzdude, Yes sir you are correct about synthetics, but they do reduce wear and do increase mileage ; however the results may not be immediately noticeable, especially mileage. The folks you know with the SYN3...waaay overkill on the changes, IMHO. I'd be curious to know why they're doing...

Much of this debate needs to be looked at from many different perspectives, i.e. riding style, mileage, climate, etc. Personally, I would not run the conventional HD oil in the engine for 5,000 miles like they suggest. That's a little too long for my comfort level . On the other hand, when the...

Hi penzdude, somewhere I read that as a "term of endearment" for twin-cam in reference to the new (since 2000) big twins. I'm not so sure I like it either. We've got panheads, knucleheads, shovelheads, and evos... so what's the nickname for the twin-cams gonna be? Oops, I just hijacked my own...

Tnford27, Yes, the "twinkies" do have a better oiling system. The best new development is the change to gerotor pumps (there's scavenge and pressure, 1 each) to increase volume. American Iron mag has been running a great series of tech articles on it recently. I've also heard good things about...

You're right KW, I think so as well. The first choice for my bike was a fleet 15w-40 like Rotella, but I'm a little concerned about hot oil pressure because twin cam engines only run about 30 psi @2000 rpm. (and next to nothing at idle) If I install a good mechanical pressure gauge I might give...

Hello Everybody, I'm another "oil nut" joining your community and just wanted to bounce an issue around with you. My 2003 Harley FLHT is approaching first service time and I'd like to use Valvoline VR-1 racing 20w-50 or straight 50 (both dino), depending on season. Waitaminnit, before you ...