Best Motor Oil

buying in bulk is the way to go... I buy my K&N filters online... 10 pack for $49.99, and buy my oil at Costco... 12 QT case for like $5! now that's cost efficient!

-Kendall is great oil... but expensive, and hard to find in a store...

-I change my oil every 2500 miles at the most! I can't believe you guys and your 5K-10K miles between changes... that's so bad if you drive your car hard at all, and face it, that's why you own a mustang!

-although I will admit, 2500 is a little soon some of the time, but it keeps my engine and all parts hella clean :D (that and the chevron additives)