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Re: Engine Oil
Do not run Mobile 1 5w30, if you are making more than stock HP and don't want to spin a rod bearing or put a rod through your block. I personally wouldn't run any brand 5w30 or any Mobile 1 anymore. 4G63s are a bit more forgiving than some motors when it comes to oil, but I recommend most people run at least a 10w40 in the Summer.
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