Fuel & Ethanol Info



Fuel Recommendations

(2 Stroke Snowmobile & any other 2 Stroke Engine)

For maximum performance, Polaris recommends the use of 91 octane or higher non-oxygenated (non-ethanol) fuel. Although lower octane and/or oxygenated (ethanol) fuel is usable, some engine performance will be lost and fuel economy will decrease.

NOTE: Do not use lower than 87 octane fuel. Do not use oxygenated fuel containing more than 10% ethanol. Never use E85 fuel in your snowmobile.

NOTE: Operating with an obstructed fuel system will result in serious engine damage. Perform maintenance as recommended.

Fuel System Deicers

If you use non-ethanol fuel (sometimes labeled "non-oxygenated"), Polaris recommends the regular use of a isopropyl-based fuel system deicer. Add one to two ounces per gallon (8-16 ml per liter) of gasoline to prevent damage resulting from fuel system icing. Never use deicers or additives containing methanol. Polaris recommends the use of Carbon Clean Plus.

NOTE: If you use fuel with up to 10% ethanol (sometimes labeled "oxygenated") do not add deicers or additives that contain any form of alcohol.


(Below Applies to Certain Model Year Polaris Snowmobile CFI 600 & 800 Engines )

How to switch Ethanol Fuel Mode Selection Wires

*Please reference your snowmobile model owners manual*

**Check the side bar @ the top of this page for a Video on 2013 Polaris snowmobile fuel mode selection method.**

Ethanol Sled WiresSwitch.jpg


2 Stroke Engine Break-In Fuel/Oil Premix Ratio

During the break-in period, premix the first tank a fuel 10 US gallons (38 Litres) using a 40:1 (fuel:oil) ratio.


•1 Gallon = 128 Ounces = 3.8 Litres

•128 / (Desired Ratio) = Ounces of oil for every 1 gallon (3.8 Litres) of fuel.

•128 / 40 (40:1 Ratio) = 3.2 ounces of oil for every 1 gallon (3.8 Litres) of fuel.

10 US gallons (38 Litres) of fuel require 32 oz. of oil to achieve a 40:1 premix ratio.

Always mix fuel and oil 5 gallons (19 Litres) at a time. Never fill the tank with fuel and then add oil.

NOTE: A 40:1 premix should always be used during engine break-in or after rebuilding the engine.