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NewBee

Octane Booster For 2004 WR450F

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Is a good idea to add an octane booster to my fuel since the highest octane level I can get at the pumps here in Newfoundland is 91.5 or 92 and the bike requires an octane level of 95? :thumbsup:

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Your bike requires 95 RON (Research Octane Number) which is equivalent to 91 PON (Pump Octane Number=Research Octane Number+Motor Octane Number/2). Octane boosters and aviation gas can be hard on your engine... My 426 only had a light ping under load in high gears between about 6000 and 7000 RPM on 92 PON, Esso then switched to 91 low sulphur gas. I backed off my ignition timing at the pickup on the stator and switched to a colder CR9EIX plug which helped a bit. I now mix with Sunoco 94 which I picked up about 300 miles away...

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I buy 110 race gas at $4.50 a gallon and mix it half and half with 85 pump for 97.5 octane to help the bike run cooler in the summer and it comes out to $3.33 a gallon or so.

Hoss

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if the bike runs okay and doesn't ping on pump gas, run it. gas does "go bad". so, always use fresh gas if you can.

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Octane booster will eventually gum up your fuel lines and carb. It drops out of solution when you bike sits in between rides. I run 100 unleaded I get for $3.25/gal, bike runs cooler and starts easy.

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Don't use it! :awww: Buy race gas instead and mix it with premium. :thumbsup:

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