I'm in the process of rebuilding my tranny. I have about 13 quarts of +4, and somehow, a quart of multi vehicle fluid snuck in there some how. I only used a 3rd of a quart of multi vehicle fluid to fill my torque converter before I noticed what I was doing. Lesson learned, pay attention to detail!!! The bottle says it's compatible with +4 to fill up or top off with. My question is, am I safe? Will a 3rd of a quart do any harm? I still have to put in about 10 more quarts (it's a dry fill). Thanks again.

 

Something tells me you will be just fine. But I know why you asked and I don't blame you.

 

you'll be fine.

 

Yeah, that multi vehicle crap freaks me out.