I have about 9,300 miles on my OCI. (Frankenbrew, prob close to 5W-30-ish)
I filled today & calculated 18.1 MPG, about .2 mpg better than my "running average" of 17.9.
Has anyone actually done any REAL studies that says used oil = less MPG?
The motor oil companies all "say so".... but I don't think I've seen anything legit.
I filled today & calculated 18.1 MPG, about .2 mpg better than my "running average" of 17.9.
Has anyone actually done any REAL studies that says used oil = less MPG?
The motor oil companies all "say so".... but I don't think I've seen anything legit.