My New Truck to PULL my boat instead of my Denali

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arveetek

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I wouldn't bother with sea-foam in that diesel, it'll do no good. I would make sure to change all the filters, and keep up on that, diesels do not like to be shorted of fuel. Also, make sure there is no water in the fuel line, diesels have water traps because the fuel is good at attracting water, and the water trap needs to be purged occasionally. Basically, check the glow plugs, make sure they all work, run some cleaner through the injectors, and NEVER fill up when the truck is putting more fuel in the ground. Diesel tanks collect a lot algae and having a semi-truck pumping fuel into the ground stirs all that crap up and it'll plug your truck faster than a bad burrito.

Oil in diesels will always be black, even 15 minutes after it was changed. Just make sure the level stays up and doesn't smell of diesel fuel and seems runny. That is bad. Otherwise, just let it be.

Those old 7.3l PowerStrokes are good motors capable of going 300,000 and more with few issues. Enjoy!


All good advice!

However, the engine in question here is not a "Powerstroke." The electronic, direct-injected "Powerstroke"' 7.3L turbo engines debuted midway through the 94 model year. This 7.3L is the old naturally aspirated indirect-injected mechanical engine. Still a really good engine. Not much to them. The biggest issues were with the glow plug systems, making them hard to start when cold. (Glow plugs stick into the combustion chamber and glow red hot helping the engine to start when cold) The glow plug relays go bad quite often on these older engines.

Adding a turbo will make a lot more power, but you can usually find a used system for a whole lot less then a new Banks setup.

The reason that the oil turns black so fast on the older diesels is that the soot from the combustion process gets forced past the rings due to the high compression, and goes right into the oil. As has been mentioned, perfectly normal for the your type of engine. Make sure you use oil rated for diesels; it will with a "C" rating (for compression ignition) along with the "S" rating (for spark ignition). Usually diesel oil will come in a 15W-40 rating; a real commonly used brand is Rotella T.

I would suggest you check out www.thedieselstop.com It's the best resource for Ford diesels.

Casey
 

SunlitComet

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The kit is for a non-powerstroke engine from 1988-1993. I have personally used Chevron Delo 400 SAE diesel oil in every auto to industrial diesel I have ever touched.
 
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