Sea Foam for oil sludge problem [SOLVED]

Greetings and thanks for fielding questions like this. I have a 2017 Nissan Pathfinder. Motor is a V6 3.5L.

Last oil change was 10k ago…typical husband wife thing “I thought you were going to do it”. Wife drives it to work daily…maybe 10 miles round trip if that.

Dealer is saying my oil is “sludged as ****” after the car is running low on power. I didn’t look at the oil but find it odd that it would be sludged as **** after 10k miles.

Whatever the case, can Sea Foam help with this? I’m having them change the oil and they said to change the oil again in 1k miles.

If the Sea Foam would help, what’s the most effective way to use it to help me with this problem to clean the internals out?


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Jim D.
Jim D.
2 years ago

Hi Mark. Yes, adding Sea Foam to oil will work fast to reliquefy heavy residues (and sludge) back into the liquid oil phase so the crud can drain when changing your oil. Start buying Sea Foam High Mileage and eyeball half a can into your oil crankcase every interval to progressively remove the sludge buildup. Don’t worry too much about getting it all at once. Just keep at it and things will get better/cleaner each interval.  If you think you a have a lot of sludge, check your oil 20 miles after adding Sea Foam – if the oil goes black right away you’ll want to change your oil. I also agree with the suggestion to change your oil at 1,000 miles for the first couple intervals – remember to add half a can of Sea Foam every interval!