^ that got me laughing!!

that lil gear demo in the stores... think about it the crank was always harder to trurn with the lucas in it... Not good for internals of an engine. not smooth and slipery enough for me...

 

I know about 25 years ago "Motor Flush" was basicly kerosene in a can .
I tried it on two engines . One survived , the other went to piston heaven.
The one that lived tended to go through more oil .

 

Over the years, seals, guides, gaskets, rings, etc all wear, this is normal, however the signs of this wear are delayed by sludge and carbon build up. Motor Flush does a great job at cleaning this, too great, which is why you have people like the last poster, complain of it using oil or killing an engine. It loosens large deposits, which clog the oil pump screen, starve the engine of oil and then you have a dead engine. If it doesn't clog the screen, it exposes leaks that have been there for god knows how long, but covered up by sludge.

Using diesel oil will help to SLOWLY and SAFELY remove sludge build-up over the course of many oil changes. I have a 30 year old Pontiac V8, that has never seen a rebuild, valley pan was completely sludged, within the last three oil changes, the amount of sludge in the valley pan is greatly reduced. Every time I drain the oil pan and remove the oil filter, both show me little spots of sludge. I run Mobil1 0W40 Turbo Diesel oil in the Pontiac and Shell Rotella T 10W30 in the Mazda B3000.(Which now has 131,000 miles).

If you cannot wait that long, buy AutoRX, it is a type of motor flush/oil treatment, that is not as quick as kerosene in a can, and not as slow as using diesel oil.

Sludge will eventually kill an engine, don't put it off because you may uncover a leak along the way.

 

I am wondering if a little Seafoam may or may not do the same thing. They say to add about 1.5 oz. per quart with an oil change.

Do you just add a little diesel oil or use it exclusively or use it for a few oil changes?

 

Seafoam will thin out oil, use it with EXTREME care, one of the ingredients listed in Seafoam's MSDS sheet are "petroleum distillates" (IIRC it is around the 40% mark of total volume). Petroleum distillates can mean a lot of things, but you don't want any of them in your oil, for the reason that it thins out the oil.

I use it exclusively in my vehicles, diesel oil contains high levels of ZDDP, an additive package removed from modern gasoline motor oils due to some hippie protests about pollution or what not. Tappet camshafts require this additive for proper lubrication, and tappet cams all disappeared (From the factory) by the end of the 1980s, so that little fact is not so important for us. Lucas Oil Stabilizer contains some amount of ZDDP, not nearly as much as diesel oil itself however. So you'll be better off and save money while you are at it, if you just buy diesel oil.

 

I figured Seafoam would thin it some. I would not consider using it all the time. Damned environmentalist hippies.

Doesn't the diesel oil lack things that are necessary for gasoline engines?

 

Nope! Look at the API circle on the back of the diesel oil bottles, most of them meet SL and SM gasoline oil standards. SM is the latest gasoline oil standard, certifying it as "energy saving".