When should I add Sea Foam Motor Treatment to oil in a diesel tractor? [SOLVED]


I have a 1952 Fordson Major tractor. It has a four-cylinder diesel engine that takes about 7.8 quarts of oil. I change the oil in my tractor based on work hours instead of miles. According to my manual I am supposed to change the oil after every 50th running hour.

So my two questions are: When should I add Sea Foam in the crankcase before the next oil change? Should I be running the tractor as usual or just let it idle as the product does its thing? I am looking to clean up old sludge buildup in the engine.

Thank you!


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Jim D.
Jim D.
3 years ago

Thanks for the questions Pontus. For engines without odometers or maintenance updates based on hours, add Sea Foam to oil before your last 2 to 4 running hours. So in your tractor’s case, add half a can to the oil filler and operate the engine at least two hours before each oil replacement interval. Over time, Sea Foam will work to reliquefy all that old sludge back into liquid so it can pour out when you drain your oil.