Originally Posted by Dan Root
I think you answerd my ??sBut it could be just the chip or just the k&n or just the timer!Oil does't effect speed unless ,It does effect gas milage,that's why o-40 was designed
When I talked about changing to synthetic oil in my Explorer I was refering to the fact that synthetic oil helps with fuel mileage by doing a better job of reducing friction in the engine than patrolium oil. So the K&N filter along with the synthetic oil increased my mpg.