mixing trans fluid

I have a leak in my trans so i have to top off every once in a while. I'm wondering if its bad to use 2 different brands of fluid. Ya know i buy what ever is cheaper deal cause they all end up on the floor.

No problem with doing that.

Should be fine as long as its the same exact type of fluid

so i'm guess i'm a use mercon / dextron III now they got the V i shouldn't use that one right? can't mix the new with the old?

i'm a keep to the III

thanks for the help guys.

Stick with Dex/Merc.

Stick with the III. It's what the trans was designed for.

At leats go with a name brand like Castrol. I wouldn't stick "Uncle Burts Super A-TEE-EFF" in the trans even if it leaks out in a day or so.

cool i bought some before from napa but i went to checkers and got some valvoline quarts. going to run that till i save money to have it fixed right. got the dex merc III