Mixing ATF

I know the title seems idiotic, but I just drained my ATF in my '04 4x4 cause it was looking a little nasty.

I bought 4 quarts of Toyota Type T-IV. I realized when I was filling it that the dipstick o-ring was leaking and about a half of quart ended up on the garage floor. I'm about a half quart low from full HOT. Can I make up the difference with Mobil 3309 or similar approved T-IV?

I live 40 miles from the dealership and 3 from NAPA.

What would you do..........?

 

go for it, wont hurt anything.

 

I don't see a problem using something from NAPA. If you are really concerned, you can always drain and fill it again. Just order some fluid online. There are plenty of substitutes too. Driving 80 miles round-trip is hard to justify. 8 gallons of gas at $4. That $32 can buy the ATF.