Most snowmobiles require an oil change about every 4,000 miles or every 1,000 miles with heavy usage.If your snowmobile is used in any sort of performance sport, you must replace the oil after every event.The vast majority of snowmobiles require a synthetic oil; using a mineral or semi-synthetic oil may damage your snowmobile.
Insert the starter key into the ignition of your snowmobile and turn on the ignition. Run the engine for up to 20 minutes so the engine reaches full temperature. Upon reaching full temperature, the oil inside your snowmobile will liquefy.
The oil tank is generally behind the left front tire on most snowmobile models. Raised or lifted snowmobiles may have the oil tank directly in between the two bottom treads. The tank will be marked with either the word "oil" in large type or a small drawing of a droplet of oil. There will be two or three bolts on the bottom of the oil tank. Grab your wrench set and find out which one is needed for your particular snowmobile model; it's usually between 3/8 inch and 1/2 inch.
Use the wrench to loosen all of the bolts on the bottom of the oil tank. Remove bolts. Place the long oil pan directly beneath the oil tank. The panel that keeps the oil in place should be easily removable; just pull it off. The oil will start to drain into the pan; allow up to 30 minutes for the tank to empty.
When the oil is done draining, replace the drain panel and the bolts on the bottom of the tank. Find the circular metal cap on the top side of the oil tank. Unscrew this cap and pour in your chosen synthetic oil. Close the cap and make sure it is screwed on tightly.
