Does our engine benefit from premium (93 octane) instead of standard (87 octane) enough for it to be worth the more expensive gas?
damn!! 100! wish i could get that here im lucky that 1 gas station in town sells 93!selrider99 said:well they sell 100 at the station by me ... but i never used more than a 1/2 of tank.... shit cost like 5.50 a gallon
but the car runs damn great
the closing paragraph of that article recommends using the octane rating recommended by the manufacturer of the car. ours calls for 87, so unless your car has high-miles on it, i dont think it really is worth it to spend 20 cents more a gallon (regular to premium) just for a little peace of mind. ive got better things to pay for, like insurance.SilverSentra99 said:there is a clear difference in the way most cars run if you listen and pay attention to your car, I just made the change to premium and it added 23 miles to my city driving per quarter tank and i made sure my driving style didnt change much other than the occasional streat race with a monte carlo, but other than that i used the same roads and speeds ( 75+ onthe highway). I will make sure that put premium in my car often , Cheveron with Techron is the best, and all cars have knock sensors Especially ours, thats waht causes the fuel cutoffs at 109.
Heres the proof, Car And Drivers report on gas octanes, everyone should read this. not all cars improve, some do, yours could, mine did.
Car And Driver: Regular or Premium?
I don't believe knock sensors cause fuel cutoff at 109 . Knock sensors will decrease your timing. As far burning O2 sensors faster from higher octance, I believe those are just the leaded gas or race gas.SilverSentra99 said:...and all cars have knock sensors Especially ours, thats waht causes the fuel cutoffs at 109.