Gas Octanes, What is the deal?
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From: Trevor, WI
Gas Octanes, What is the deal?
So this isn't really related to any specific vehicle, although what does the different grades of fuel do, or what effect do they have? 87, 89, 91.... Does anyone know if there's a noticeable difference between them?
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From: Va Beach
It has been proven that higher Octane gas (89-91) does not provide any better fuel economy or power, although some will still say it does. Higher Octane gas is meant to be used in cars with higher compression ratios (like race cars) to prevent premature detonation and that pinging noise. Engines that run hotter may also benefit from using it for same reason. In the western part of the states where temps are higher this may be recommended. Toyota and nissan recommend using it, but not 100% necessary.
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Joined: Feb 2009
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From: Trevor, WI
It has been proven that higher Octane gas (89-91) does not provide any better fuel economy or power, although some will still say it does. Higher Octane gas is meant to be used in cars with higher compression ratios (like race cars) to prevent premature detonation and that pinging noise. Engines that run hotter may also benefit from using it for same reason. In the western part of the states where temps are higher this may be recommended. Toyota and nissan recommend using it, but not 100% necessary.
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Octane is the fuel's ability to resist detonation explained here http://www.eejitsguides.com/environm...el-octane.html
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From: Ontario Canada
Octane is the fuel's ability to resist detonation explained here http://www.eejitsguides.com/environm...el-octane.html