I'm new to 4 stroke snowmobiles. Dealer said I should use
Ring free every 3rd tank. kind of expensive. I use Sea-foam in my motorcycle, Would it be OK in the sled and how often
Ring free every 3rd tank. kind of expensive. I use Sea-foam in my motorcycle, Would it be OK in the sled and how often

NY_Nytro
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Sea Foam is ok as well

Oak Hill
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Sea Foam is excellent. Use some in every tank to take care of moisture and to remove any carbon. 

Tom-RX1
Expert
Also run some in the oil for the last 100 miles before changeing oil cleans bottom of rings .
Tom-RX1
Tom-RX1
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