STP "Red" [Archive] - SR20 Forum
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: STP "Red"

lowmileage
10-15-2008, 03:38 PM
Any thoughts of adding this stuff to an oil change?
15 oz Red + 3 Qts M1 5w-30

The Red contains a Zinc additive.
eric96ser
10-15-2008, 03:53 PM
why?
lowmileage
10-15-2008, 04:12 PM
M1 5w-30 contains 800 ppm zinc and I thought the "Red" would give it a boost up to the levels it had prior to the SM rated oils.
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