I have to service a somewhat neglected 8L45 (automatic 8 sp GM transmission) in a 2017 Cadillac ATS 2.0T and it calls for Dexron LV HP fluid. The latest version (blue label) M1 Dexron LV HP is the fluid everyone says to use. Apparently these units have a strong tendancy to have TCC shudder if wrong fluid is used. I was curious if anyone has any experience with Valvoline's newest Extended Protection ATF in one of these GM 8 speed units. I already have this fluid in stock, and it claims compatibility with both the DexVI AND LV DEX HP specs. I noticed that the blue label LV Amsoil ATF also claims compatibility with both of these specs as well, but costs me about $20/gal more than the Valvoline, which I already have in stock. Any input with personal experience on this transmission, using the Valvoline or another fluid with good long term results would be helpful.TIA, and cheers!
Valvoline Extended Protection ATF for Dexron LV HP
- Thread starter bmwtechguy
- Start date
Not the same trans, but in my 6T40, which is known for the torque converter shudder as well, I have had great success with Valvoline Maxlife ATF with Lubegard additive. Better shifting and no more LSTC shudder.
which lubegard?
I prefer Instant Shudder Fixx 19610. ATP AT222 is also very good from use in another 6T40 that I serviced.
Blue Label Mobil 1 costs about the same as Valvoline Extended Protection doesn't it? Why not just use the Mobil 1?
I recently, (by recently I mean today) had a remanufacture transmission put in my car. I decided to go with Valvoline Extended Protection ATF because its newer (Technology?) and derive from maxlife.
I almost went with amsoil but the price was more than double. I got 12 quarts for 90 bucks, amsoil was over $200
You have a 8L45/8L90?
O nope sorry, but my transmission take same two fluid.
The GM 8 speed are the only units that call for Dexron HP LV ATF that I'm aware of.