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.
I guess she didn't read the bottle before pouring it into the engine. She must have grabbed the bottle with the easy pour spout. Excellent excuse to change the motor oil and filter. Gear oils have different friction modifiers than motor oil and have a low TBN.
Thanks because I just changed the oil about a month ago and the atf came out of the tranny( the pan holds about two quarts and I do this every oil change)
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.
Someone said it above.
Change the oil & filter with some cheapo stuff. Go drive around a while and then change it again with the normal oil & filter. Since what's in there seems to still be a mystery I wouldn't drive it all all until you've done this. Better safe than sorry.