Quote:
Originally Posted by Wedgy
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Only having 91 oct in CA; I filled up with 93 oct one time, and i don't know if it was in my head, but maybe it ran a little smoother... I don't know...
If you want higher octane, buy higher octane gas.
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it should run smoother. higher octane gasoline allows for more clean burn of the fuel itself, netting you more (albeit not much) power. lt1 camaros came out the door with 10.5:1 compression and the lt4 vettes came with 11:1
they were recommended to run at least 91 octane. tho you can use 89 in an engine, you are really not saving any money, sure a couple bucks every week or so when you fill up, but when your motors insides are deteriorating due to the crappy fuel you are running, it will cost more in the long run.