I had my oil changed and the individual managed to over fill it by about one quart. I'm using the crosshatch as a guide, the manual says the crosshach equates to 2 quarts. After an overnight sit on level ground it is about 1/2 of the length of the crosshatch beyond the end of the cross hatch. The manual says this could cause foaming. I'm hitting the road tomorrow. Am I taking a chance by leaving it over the mark? This engine just doesn't use oil so it will stay that way until the next oil change.