http://www.usatoday.com/money/autos/2003-07-30-premiumgas_x.htm
Got into yet another discussion with a guy regarding octane requirements of various engines and found this article.
Got into yet another discussion with a guy regarding octane requirements of various engines and found this article.
clutch
Expert
Steve that is an interesting article. Thanks
Thanks, I thought the timing would be good considering the prices we all pay at the pump are about to take another jump.
My truck says "Premium Only" on the filler cap yet I've run mostly 87 octane for most of the 2 years and 40,000 miles I've owned it. Periodic testing showed me an ever so slight increase in fuel milegage when using premium but not enough to justify the cost difference. The engine control system simply adjusts to compensate using its knock sensors.
My truck says "Premium Only" on the filler cap yet I've run mostly 87 octane for most of the 2 years and 40,000 miles I've owned it. Periodic testing showed me an ever so slight increase in fuel milegage when using premium but not enough to justify the cost difference. The engine control system simply adjusts to compensate using its knock sensors.
Octane
Pro
- Joined
- Jun 5, 2004
- Messages
- 135
Thats an interesting article.
I know that some of the newer Toyota cars and trucks say in the owner's manual that "for OPTIMUM performance" you should run 93. Im on a few Toyota forums and people there say they dont notice a difference in how their engine runs from 87 to 93 octane fuel.
Myself, if my engine could gain a few hp on 93, Id probably put it in if I knew I was going to be hauling a heavy load, but normally I wouldnt.
The oil companies make enough money, why give them any more than you have to?
Cap'n
I know that some of the newer Toyota cars and trucks say in the owner's manual that "for OPTIMUM performance" you should run 93. Im on a few Toyota forums and people there say they dont notice a difference in how their engine runs from 87 to 93 octane fuel.
Myself, if my engine could gain a few hp on 93, Id probably put it in if I knew I was going to be hauling a heavy load, but normally I wouldnt.
The oil companies make enough money, why give them any more than you have to?
Cap'n
clutch
Expert
We use regular in the wifes civic. It calls for the next one up but the car can't tell the difference. I use the middle grade in the Grizzly as it is low compression. I use it for short trips around town cause it gets 20=mpg. 
