Originally posted by Kennard: I run 5W-20 Mobil 1 in both my Fords year in and year out. My V-10 6.8 liter Super Duty and my 2.0 Zetec get Mobil 1. Buy it at Wally World in the 5 quart jug for optimum savings, it's $18. And always, always, always use a Motorcraft or better oil filter. Never the 'orange filter', the by-pass valve may stick then you got no oil lubricating your motor.
Are Purolator Oil Filters any good, thats what Im running now. Also my buddy (who is big on Off-Roading) said something about the Wal-Mart SuperTech oil filters actually being good. Has anyone else heard this?
