Originally Posted by CharlieHustleX5

I've never tried the Walmart label Dex VI, but if its really Dex VI in there, you should be fine.

I used the Dex VI from the GM dealer on my last fill. I went through 3 different transmission fluids over a span of 40K miles. First it was Valvoline Max Life ATF, then Valvoline Dex VI, and now GM Dex VI. I honestly cant say I felt any difference between the 3, but I spent just under 6 bucks a bottle for any of the transmission fluids I used. For out transmissions, I dont see the need for mobil 1 when Dex VI is what the dealer suggests and it is already a synthetic fluid.