Chopper Forums

I've used a variety of oils over the years, and have done quite a bit of research on the subject. Let me begin by saying that I've used Harley motor oil, Castrol, Pennzoil, Valvoline, and Mobil 1, as well as some other generic oils. (probably some I don't remember). I've never had an issue with any of them. However, when I started researching the subject, and reading studies done on viscosity and break down in air cooled engines, this is what I've found. Now I know I'm dumping the can of worms that Wolf opened onto the ground, but regular old car motor oils faired as well as premium motorcycle oils in all of the research I could find. (throw rocks if you must) the top performer was Mobil 1. this beat everything else on the market. it had a more gradual break down of viscosity in air cooled V-Twins (tested by running the various oils in the same engine under the same conditions for equal times and temperatures). I truly believe that there is alot of propaganda out there from oil manufactures concerning their oils. the bottom line is that you should use what you have faith in. In a pinch I'll use what I find at the gas station I push the old girl into. But that's me, be bold and be your own Biker and stop reading my opinions on oil, I'm sure you all have your favorite , so stick with it and be happy!

BTW, I always use 80-90 gear oil in my transmissions....

I'm running Ansoil because of the data by third party labs and if you join their group you get it for less than the dealer cost and they ship it to your door.  I've tried them all and none of the engine failers I've had was because of oil. 
I am experimenting on Ugly Betty,  I started out with 10w30 car oil and at 20 miles switched to 20w50 car oil until I get to 1500 were I'll switch to Ansoil.  The car oil brand is the cheapy Napa oil.  Ho ya Betty's 120cu. and she runs like a top and its takes along time to get her up to N.O.T..

Naa, after the man wanted to drill holes in the frame for a Vin Tag I put her away for the season.  Just have'nt been able to bring myself to let them at her.
Actual miles about 400 so far.

well i gotta agree to a point.. what your happy with may not be what your bikes happy with.. the 25/65 rev-tech oil shows very little breakdown signs for a fossil oil at interval oil changes, as does mobil1 .. when you talk synthetics, theres a big gap in whats best.. i cant seem to find who is making the r/t oil for them to bottle, but i suspect mobil .. except the weight variations dont run true with mobil's normal oils..theres a big difference when talking fossil oil & synthetics.. i , like horsethief have used it all.. ido know most car oil are o.k. if you change regularly.. but in all.. i want whats best, but dont want to use synthetic oil.. reasons of my own..  dammit man.. drill them holes..

syn. in the truck... i dont know brother..

i'm gonna check with ford on the possibilty of using it in my 05 model.