Questions & Answers for: mixing 87 93 octane

87 and 93, but 89 was an available option. it's just a way for oil companies to benefit off of ignorance. 91 and 93 is for high performance engines, turbo-induction, superchargers, that sort of stuff.

...87 octane, refilled with 93 and then the check engine light came on. what needs to be done? Different octane fuel should have no real or lasting effect on your car except perhaps a bit of slight ...

...93 (mid-grade to premium) at all times. The gasoline suppliers blend mid-grade and premium gasoline with greater amounts of detergents and anti-oxidizing additives to keep the engines clean. Lack of ...

...87 octane on new gas which was the same as what i was running and it started pinging and running like **** then stalled and would not start. took the plug out and it was fouled. cleaned the plug got ...

...fuel injection came out,companies are required to add a certain amount of detergent to keep injectors clean anyways.And 93 octane is not better than 87 octane enough to pay 20 cents more per

...87 octane) I used to mix race fuel (105 octane) with 93 octane just for the heck of it, but that is totally uneccesary. also check (or have checked)timing and timing advance at higher rpm/load(when ...

...93 may be an issue esp if it has ethanol in it to boost the octane Suggest you drain the gas tank any way you can, and put 87 octane in it. Rather than throw away the gas, you might use it for ...

...compression. Some newer high compression motors thrive on 93 octane and av gas (110) is a complete waste of money. Your 5.5 will run fine on 87 or 89 using the factory recommended 16.1 fuel/oil

...87 octane). I just had the exhaust system replaced and the car was running a bit louder and rougher than I thought it should be....Today I put in Premium (93 octane) and it is running decidely ...