I know I said I have a good engine but I have another question to go along with that. I used our 720 gallon sprayer today on 85 acres of wheat today and notice a oil like substance around the base of the head. It seems to be burning off the head near the rear and no exhaust gases seem to be coming out the blow by tube now either any ideas would be helpful in taking care of her. Funny how people used to talk about hearing a neighbors tractor running across the way. When I went to shut the dryer down on the grain bins I heard my own Oliver about a mile away doing what they know best, getting the job done:the timemaker!