Another idea that I have heard. This sounds off course but stranger things have happend. The Trooper is a notorious oil hog. Some think because of the piston/ring design, others because of a flaw in the intake gasket. One fellow said that his was using oil and that changing his air filter fixed the problem. Now I am no engineer, but this does not seem possible unless some serious vacum pressure is being exhibited throughout the engine. Anyway has anyone run across such a thing?