DiggetyDan
Jr. Member
I just came up from the garage - figured i'd do a quick oil change before heading out for a drive. I thought I had a box full of oil but forgot i had given the wife an oil change a couple weeks back. It turns out I have 2 quarts of 10W-30 and 2 quarts of 10W-40.
Would it damage the engine if I combined these two?
Would it damage the engine if I combined these two?