Come on some of you mechanics gotta know if this is bad good or no prolem. I want to trow new oil in but only have 1 qt. of each and it will be a week before a new case comes in. PLEASE TELL ME its okay.
Never, ever mix oil types, viscosities or brands! Not if you love your engine. They all have different kinds of additives (chemicals) that you do not know how they will interact oif you mix them. I am a mech engineer.