is high octane make a difference? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 11-18-1999, 05:06 PM
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is high octane make a difference?

I have a 1992 Polaris Indy 650 RXL and was wondering if it is worth to keep putting the most expensive gas in. Does it make a differenc? does it matter? anything would help.

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post #2 of (permalink) Old 11-24-1999, 07:43 PM
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Re: is high octane make a difference?

According to my Polaris shop manual, they recommend using the higher octane level gas if you either have made engine modifications or if you are running the epa oxygenated fuel. Chances are you fit into either of those areas. I have a 1988 Indy trail and usually run the 92-93 octane gas just to protect against burning up the engine during long hauls. Cheap insurance. Do you really need it? They suggest against the 87 octane fuels. 88-89 octane is suggested except for the previously mentioned problems. It's your sled so you can run what you want now that it is out of warranty. The other advantage of the higher octane fuels is they burn cooler and generally cleaner due to more additives.

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