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what level octane should i use in a 99 Sir, whats a recommend gas station and what type of oil should i use? i used pezoil racing oil and a little bottle of nitro lube but it was eating up within 3 weeks :/ please send some ideas my way im just learning (grade12)

 
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You should use Unleaded with Octane number of 86 or higher, and probably Mobil 1 High Mileage 5w-30. Make sure if it is 5w-30 though.

 
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use what the manual says. valvoline maxlife is one of the best oils for higher mileage cars.

 
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I've always thought Mobil 1 was, but since everybody's talked about it going from Type IV to Type III, or whatever happened, idk.

-Thanks

 
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i think mobil1 is crap