2009-2015 Cadillac CTS-V General Discussion Discussion, Which auto trans & brake fluid are our Vs filled with? in Cadillac CTS-V Series Forum - 2009-2015; Mine is a 2011 CTS-v and some say ours is filled with dexron 4, but some say it's dexron 6.
Automobile(s): 2011 CTS V Coupe Thunder Gray ChromaFlair
Re: Which auto trans & brake fluid are our Vs filled with?
Its Dexron-VI. I was actually told by a tuner to fill the trans about 1.5 quarts over full, which is a pain because there is no filler can and you have to pump it in thru the check hole underneath. My car was "hesitating" on hard shifts from 1-2 and 2-3 gear. Although I couldn't get a full 1.5 quarts extra in, I got about 1 quart in and it seemed to solve the problem. The trick is to do it when the trans fluid is cold or you will never get the extra in due to the fluid being warmed up and expanded.
As for the brake fluid, your guess is as good as mine on that one.