just got the 04 sportsman ...wondering what type of gas do most polaris owners use?high octane,medium....or just the cheap stuff?

 

They suggest to use 91 or higher---- thats what it states in the owners manual--- i run 93 or 110

 

The 500 HO motor takes 87 Non-oxygenated or 89 oxygenated. I just run 89 octane (midgrade) But you should be fine with 87 regular. The Pred takes 91 or higher cuz it is a higher performance motor. The other polaris motors dont need that high of an octane. If you were to run 110 octane on a stock sportsman motor you will do more harm than good

 

man i cant find anything on fuel in the manual?what section did you find this in?

 

The machine specs at the front

 

ok i found it !thanks guys! :-0

 

BBS:
What kind of damage are we talking about? I WAS going to use some race gas in my sportsman next time out. Is it because of the higher running temp or what?

Thanks
Jes
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If you are running too high of an octane on an engine that it not designed to for it, you can cause pre-ignition. Pre-ignition has the same effect as advancing the timing. Icauses the engine to be subjected to huge amounts of heat, because the piston and cylinder walls are subjected to the burning process for a longer period of time (higher octane burns slower), this in turn raises the combustion chamber pressure. It's possible for pre-ignition to melt the top of pistons because of the extreme temperatures that this advanced timing causes. Keep in mind that any time you raise the temperature in the cylinder you get a corresponding rise in pressure. So thats why it is important to run the motor on the recommended octane level

 

where do you get 110 octane?

 

what are people using in thier raptors?