Is using premium gas any better than regular (87) when your engine specs say you can run premium or regular? I know some larger 4x4 ATVs want you to only run regular while others give you a choice. Lets say your running a stock wolverine/warrior 350 and it runs fine on 87 and 93.... is the extra cost of 93 giving you anything in the long term?

 

i Ran my quad on premium (92) for the first month, then i got cheep and went to 89 and i noticed it idled smoother and started easier. Then i went to 87 and noticed a little more pep from the engine, expecially top end. Now i stick to 87 and my engine runs smoother anc cooler. some Rap. 350 guys have overheating problems, and when they go to 87 they go away.

 

The lowest octane that prevents detonation will produce the best possible results.

Oxygenated fuels are a different idea.

 

If i was you i would stick with the regular. The gas prices around here are absolutly crazy like 2.10 for a gallon of gas [img]i/expressions/face-icon-small-mad.gif[/img] It sucks. I filled up my truck today and it cost me 30 bucks and it only raised it to a 3/4 of a tank.

 

Ha....My trucks (2 full size chevy's) cost me 70 bucks a pop to fill and when I go to the dunes, the motorhome takes $100 bucks+ 30 gallons of extra fuel for the quads, thats around another 70....My Gas card always seems to be at the 1800 dollar mark every month... Time to buy another horse.

 

I hear that, my truck has a 38 gallon tank and does well to get 14 miles to the gallon. Don't seem to pass many gas stations.

Anybody have any idea what a 660 Raptor gets for gas mileage? Maybe I should start driving that....[img]i/expressions/face-icon-small-smile.gif[/img]

 

lower octane fuel (87) will detonate quicker then (93). premium is a better fuel because it takes a higher temp to detonate and won't cause pinging.

 

i use 93 and somtime 110 in my banshee

 

But if your bike doesnt ping on 87 octane there is no reason to use 93 to prevent detonation...

 

Its all about compression, compressing fluids generates heat - sometimes enough to ignite the fuel prematurely (ie. deisel engines). If you arent pinging and havent altered the compression ratio run whatever fuel the manufacturer says. The lowest octane you can run will burn more efficiently, higher octane is not so quick to ignite and may not burn fully on a low compression motor that doesnt need it.