Posted by Power Wagon Transport [108.162.221.65] on Thursday, February 18, 2016 at 18:48:45 :
In Reply to: Re: RPM is relative to the load posted by wayneh [173.245.54.42] on Thursday, February 18, 2016 at 06:34:08 :
Increased horsepower is my guess ...
More horsepower output at the same relative RPM would result in an increase in measured speed.
I just was checking my odometer/speedo which may or may not be accuarate.
Bottom line - I have had Oil Extreme in my engine now approaching 2000 miles ...
Consistent 1 mpg increase
Horsepower increase (as far as I can tell)
I will wait another 1000 miles - then add it to the rear diff & ZF 5v speed tranny
Jim