Is there a special type of coolant that needs to be used on Ski-Doos? Can coolant additives be added to the coolant as well?

Also what additives can be added to the fuel system ie various carb and fuel cleaners??

Any brand name coolant can be used mixed 50/50 with distilled water. Additives should not be needed. You want you mix to be down @ -40 degree F. Only use distilled water for mix, regular tap water can have to many minerals in it that attach themselves to the inside of engine and cooling system.
Todd

you can use any coolant that is safe for aluminum engines. Your owner's manual should tell you whether your sled should have a 60-40 mix or a 50-50 mix.

what coolant should go in my '89 MX462? I dont have the manual and havnt had to refill the liquid. What mix would go in it?