Posted by chriscase on Wednesday, September 13, 2006 at 12:47PM :
In Reply to: Re: 3/4 ton Speed re-visited ( I got 46.6 MPH!!! ) WOOPIE posted by Ugg at IL on Wednesday, September 13, 2006 at 10:45AM :
Conspicuous by it's absence in oil tests is comparisons to fresh petroleum products. Typical testimonial for additives/synthetics goes "Why, if it helps this 99,000 mile old truck get better power, just think what it would do in a newer rig!" but they never change to fresh oils first, then try a second change to "Wonder Fluid".
I do have to agree that MMO will help- it will make any oil thinner. And, thinner oil has less inherent friction. Less cushioning too.