i probably already know the answer
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Senior User
Joined: Nov 2005
Posts: 206
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From: Folsom, Louisiana
i probably already know the answer
ok so i finally bought a truck... ill post pictures and say more about it this weekend, but for now i have a question, and i probably already know the answer... i dont know how well the previous owner maintained the truck. and i wanted to run some motor flush in the oil before i change the oil... but i wanted some thoughts first... my thought was its not good because of the injectors. but wanted some others thoughts... thanks
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Best thing would probably be to change the oil with some cheap oil... run it for a couple hundred miles, and then drain it while it's hot.
Should help clean it all out. Then refill with good oil.
Should help clean it all out. Then refill with good oil.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I wouldn't put seafoam in the oil of a PSD... it will probably give the HEUI system fits. A dab in the fuel would probably not hurt anything, but not the oil.
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Laughing Gas
Joined: Feb 2009
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From: Denver CO
heres a link to a post I did on seafoam with links to there stuff FAQ's about diesels. https://www.ford-trucks.com/forums/8...hlight=seafoam They biggest hing they say about it is its petroleum not chemical so it wont hurt diesel engines.
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Elder User
Joined: Aug 2005
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From: NW Wisc
I've done the sea foam right before a oil change, dumped in the can while it was running so it didn't settle and sit in some dead corner and let it high idle with the AIC on for 10 min or so, seemed to do a real good job but I'm kinda a sea foam freak, we buy it by the case at work and use it religiously!!
Hotshot
Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
I've done the sea foam right before a oil change, dumped in the can while it was running so it didn't settle and sit in some dead corner and let it high idle with the AIC on for 10 min or so, seemed to do a real good job but I'm kinda a sea foam freak, we buy it by the case at work and use it religiously!!
Diesels require more lubrication then a gas engine.
but if you watch the video's or read, they say not to run it full time. To run it for x time and drain oil.
SeaFoam is safe.
But i'm not sure how well it will work on old injectors. Thats my worry. If I had rebuilt injectors. I'd run seafoam.
Postmaster
Joined: Nov 2005
Posts: 3,168
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From: San Ramon Ca.
I was in the same boat when I got mine. The first oil change I used Rotella T 5w-40 and a bottle of the Lucas Synthetic oil treatment. Ran it for about 500 miles. Ran it hard on the highway and drained it. I was surprised how much junk came out of the engine. I run Redline oil normally. Flushed the HPOP not long after that second oil change. Runs allot smoother now. Depending on the mileage on the engine. Mine had about 75k on it and I have no issues running synthetic oil. Running a quality synthetic is one of the best things you can do for your engine.