This is a discussion on Fuel Choices within the Grizzly Talk forums, part of the Grizzly Forums category; What octane fuel does everyone run in their Grizz. I've been running 93 octane but I found a station that sells 87 octane ethanol free. ...
What octane fuel does everyone run in their Grizz. I've been running 93 octane but I found a station that sells 87 octane ethanol free. Which would be better? 87 No ethanol or 93?
93 got a hc piston, wish i could get in noncorn lol, theres a station by me that has 87 noncorn its about 30 cents more but i need 93, ive put 50% 110 and 93, did not notice more power but did run smother but at $6 for 110 not going to run it
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2003 686 26" swamp fox, high comp piston, mud buster cam, dynatek ign. gytr rapter 660 muffler [mine]
2010 yamaha grizzly 450 stock with 48 country plow [wifes] i do the plowing
1996 indy 500 [ payed $250 and put $30 in it, runs good]
china 49cc 4 wheeler for son 9 yr old]
electric 4 wheeler for son [5 yr old]
payed $50 for a non runner needs carb, cable, throttle to run
nothing for my daughter yet [2 yr old]
What octane fuel does everyone run in their Grizz. I've been running 93 octane but I found a station that sells 87 octane ethanol free. Which would be better? 87 No ethanol or 93?
The Griz is designed to run on 87 octane. Running higher octane than needed can cause loss of power unless you have high compression piston.
X2 on what AZ08Grizz said they made to run 87 and stay away from ethanol if possible, if not keep stabil, startron, seafoam mixed in tank if leaving it to set any length of time.
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X2 on that as well the octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.
The compression ratio of your engine determines the octane rating of the gas you must use. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel.
Using a higher octane gasoline than your owner's manual recommends offers absolutely no benefit. It won't make your engine perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner's manual.
The only time you might need to switch to a higher octane level is if your engine knocks when you use the recommended fuel.
You are just waisting your money on higher octane if you don't need it. I know are brain is going to tell us it makes it faster but it doesn't really.
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Last edited by DigginGrizz700; 01-23-2011 at 11:10 PM..
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