Originally Posted By: Colt45ws
Originally Posted By: motor_oil_madman
10 percent fuel and the oil has thickened? I would take that with a grain of salt. I had 10 percent fuel in my oil one time and blackstone didn't catch it.
Agreed. Their fuel methodology leaves much to be desired. Im confident it usually under-estimates fuel by sometimes several percent, but in this case, I think the oil is so beat up it really isn't even remotely valid.
That's why I had switched to Polaris.
Actually this isn't hard to do on a Detroit...just add anti-freeze. Eventually the oil will take on an attractive gray color and be the consistency of Miracle Whip.
Pull the oil pan and pressurize the radiator. Slide under and see which side is leaking. It could be as simple as an injector cup or as expensive as a cracked block. Other choices: head gasket(s), oil cooler, liner O-rings, bad water pump, cracked head, evil spirits, and probably something else that I happily forgot. 6V92s weren't exactly Detroit Diesels finest hour.