Anyone notice an increase in gas mileage running synthetic oil and synthetic differential fluid? If so, how much?
Nope, change not measurable after running Mobile 1 0W-40 engine and 75W-90 in diff. But what the hey, anybody who can justify $6.00/quart oil shouldn't worry about gas mileage! :jester:joekrz said:Anyone notice an increase in gas mileage running synthetic oil and synthetic differential fluid? If so, how much?
paul said:Is there anything I can do to increase gas mileage air filter or any other product anything please let me know.
paul said:Is there anything I can do to increase gas mileage air filter or any other product anything please let me know.