Re: rotella 15-40 in an H

Posted by Pale Rider on May 20, 2007 at 07:47:16 from (207.200.116.73):

In Reply to: rotella 15-40 in an H posted by RMO/MN on May 19, 2007 at 21:02:40:

It may or may not be an issue of oil viscosity that is a factor in your particular leak. But what I DO know is that oils heavily laden with detergents DO cause oil leaks. While I don't know about whether this would apply to Rotella or not as I have never used it, I can safely say that there ARE some types of oil WILL cause old seals and gaskets to leak. For leaking fun try putting in a quart or two or Marvel Mystery oil. It will clean out your engine very well indeed but at the same time it will remove dirt and residue that has built up around the seals and gaskets and they will begin to run like crazy.

I worked with a guy that had previously been a partner in a deisel repair shop that repaired alot of construction machinery as well. They used alot of Caterpillar oil in Caterpillar machinery to meet specs and warranty issues. His partner was convinced it was great oil and began using in it the shop service truck. In no time at all his truck which previously needed a quart every 2,500 miles began hemoraging oil like the Exxon Valdeez and he had to put in a quart every 600 miles. It was quite evident that the oil was coming out of every seal and gasket. The detergents just did too good a job for that old work truck. He ceased using it and eventually the oil he needed to add grew somewhat less. 1,000 miles between adding a quart at the time of telling the story but it never did get to the point where it had been.

Again, I don't know if Rotella is such a heavy detergent oil. I'd look into the specs and claims. But don't let people who don't know any better try and tell you that there are not oils that will make your engine leak.

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