Originally Posted By: Junior
Originally Posted By: montero91
My daughter grabbed the wrong jug to top off the oil and may have added a 1/2 to a full quartof 80w90, what could happen here? thank-you.
When in doubt, change it out.
Just change it out... you sleep better at night. Rather than worrying if its 1 qt of MTF or 1/2 qt of ATF or some other fluids that don't belong in the engine. Today is Saturday you know what you have to do.