I have a splitter with an olde B&S 5hp I/C engine with the oil guard. I admit I hadn't run it in since last fall. Kept it under a tarp outside. So, I started it, coated all of the rust with a preservative, and split a piece of wood just to verify all is well. I figured I'd change the oil so I let the engine run while I did something else, would also give me room for new gas in the tank I thought. It cut off. I'd noticed oil and dirt mix on the axle, and figured the oil had seeped out enough to be too low and the oil guard cut it off. Partially right. When I took out the drain plug, it was all coffee with lots of cream. I had to find out if it was seized, and it turns with the pull rope. One problem down! What should I do now? How do I flush the bad oil/water mix out? I have a can of fogging oil, should I put that in the crankcase?