# NU-B question.. Very simple **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 12, 2008, 7:47am UTC](https://forums.speedlife.net/t/nu-b-question-very-simple/113812 "2008-03-12T07:47:19Z")\ **Posts on this page:** 1\ **Showing post:** 16
**Author:** ![nd4boost](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nd4boost/32/5627_2.png) [@nd4boost](https://forums.speedlife.net/u/nd4boost)\ **Post date:** [March 20, 2008, 9:45pm UTC](https://forums.speedlife.net/t/nu-b-question-very-simple/113812/16 "2008-03-20T21:45:55Z")
> [@Ugh pharmaceutical sales](https://forums.speedlife.net/t/ugh-pharmaceutical-sales/16123/69): > > Its really up to you but it “recomendes” premium gas…i put 87 in when i first got the car…last owner ran it on 91 all thew time…one day after about 2 monthes of driving the car i decided to use 91…i felt a big difference in the performance and the get up and go of the car…but thats just me…always used it since… i dont wanna be a jerk but 91oct in a N/A with regular compression ratios will give you absolutly no performance gain in fact it does the opposite The octane rating is a measure of the autoignition resistance of gasoline and other fuels used in spark-ignition internal combustion engines. It is a measure of anti-detonation of a gasoline or fuel. so the higher the octaine raiting the less your N/A will perform. on the other hand it will get you better mileage and burn cleaner just thought you should have some facts --- _[View the full topic](https://forums.speedlife.net/t/nu-b-question-very-simple/113812)._