i use castrol 5w 30 syntec,and am very happy with the results..i think it is awesome,and would highly recommend it..i just got 2 /5 quart jugs of 5w 30 at wal mart for $15.88 each(cant beat that price)i noticed castrol syntec stays almost the color it originally went in,and is nice and thick when you pull out the dipstick(doesn't drip off)
