Premium or Regular?

[Harleywarden]

whats the best fuel to use in the viper? the manual says 87 octane, but i like to run 91, is there a prob running 91?

 

[Nytro40th]

I run 87 with no issues on my 08 nytro, 91 will have less ethanol, either way you should be fine, others may have other opinions

 

[YamahaTim]

If it's stock, besides clutching or exhaust don't waste your money. 87 is just fine. I had mods on my Nytro and ran 87 fuel all the time. Tried better fuel and no difference not faster not better fuel mileage just more money. Run 87.

 

[Nytro40th]

where I ride 91 is not even an option lol, my nytro was modded as well and it ran strong on 87

 

[YamahaTim]

Lol...my Nytro ran strong as well! 87 will be just fine. Unless it's Turbo.

 

[Harleywarden]

thanks guys for your input

 

[Nytro40th]

no turbo here

 

[YamahaTim]

thanks guys for your input

No problem

 

[Nytro40th]

anytime no prob

 

[STAIN]

Higher octain fuel is harder to start under extreme cold. Ran into this problem with supercharged truck engines. They needed premeium fuel to run best but would be a bear to start when temps dipped below 0 Deg.

 

[shadow44]

My full exhaust/air box mod/RB3 Nytro runs just fine on 87

 

[irish_redneck]

how about ethanol / non ethanol ?

 

[Rich Kay]

The only reason I will put premiun in my stock Apex is because its ethanol free....its available where I ride.

 

[YamahaTim]

No ethanol is really good, but not needed, maybe for the last gas fill up for the year to store it with would be good. But for everyday use I think still a waste of money.