I scored 41qts of M1 EP 15W50 at $1.22 a pop and 35 qts of Castrol Syntec Blend 10W40 at .62 cents a pop! My wife wife was soo thrilled
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Should I mix or perhaps use the 15W50 during the summer and 10W40 during the winter(after the warranty is up of course)?The car in consideration is an 03 325i.
BTW,1000 post!

Should I mix or perhaps use the 15W50 during the summer and 10W40 during the winter(after the warranty is up of course)?The car in consideration is an 03 325i.
BTW,1000 post!
