No sir ! Just quoting test results from an industry standard test which shows that Amsoil is 3 times better so it needs no extra additives added for superior protection !!
I'm not sure of the actual zinc content, but I know the Amsoil is 3 times better wear protection than Mobil 1. That is from the industry standard " four ball wear test".
I put the AA Stage 2 kit on my car and it makes an incredible difference in the throttle response !! I came from a turbo before my X so I know what you mean about the difference in power !! It doesn't make it into a turbo car by any means, but its ALOT better ! And I've heard adding a turbo to...