Review of Schaeffer Oil
I must say that I am impressed with the results of changing the oil to the Schaeffer Supreme 7000 series.
The cold start knock in the top end of the engine is gone.....(common w/5.4 3v engine.)
After two tanks,gas mileage has gone up 1.467 mpg,I am not changing the way I drive at all.
This might be the placebo effect,but it seems to be idling smoother.
I will post a UOA up after I get about 4k for miles racked up on it.
2010 F-150 CC (Harley Taillamps, ATC tonneau cover,DDM 5000k)
1990 F-150 RC (Russell Stainless brake lines, Taylor Thundervolt wires, MSD Coil, Cats removed 2.5" exhaust pipe)
2010 Milan(wife's) Corksport Strut Bar