I'm on Amsoil 10w30. I chose to go with this oil because it isn't a huge leap from the recommended and most of the time it is pretty warm here in Texas so the slightly higher weight has it's advantages with heat. I've been on it almost 10k miles and am about to change and do analysis so I will share that here
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Airaid CAI | Borla S-Type Catback | Amsoil 10w30 and MTG Trans. Fluid
382hp 387ft/lb | 1/4: 12.9 @ 112mph
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