The General Motors 10L90 10-speed automatic transmission has been produced in Michigan since 2017 and is installed in the most powerful models, such as the Chevrolet Camaro ZL1, Cadillac CT5-V, and Escalade-V. There are two different versions of this automatic transmission, designated MGL and MI4.
Specifications
| Type | automatic transmission |
| Number of gears | 10 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 6.2 |
| Torque output, Nm | up to 900 |
| Recommended oil | DEXRON ULV |
| Oil capacity, liter | 12.3 |
| Partial replacement, liter | 5.0 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 105 |
Gear ratios GM 10L90
Using the 2022 Cadillac CT5-V Blackwing with a 6.2-liter engine as an example:
| Main | 2.85 |
| 1st | 4.696 |
| 2nd | 2.985 |
| 3rd | 2.146 |
| 4th | 1.800 |
| 5th | 1.520 |
| 6th | 1.275 |
| 7th | 1.000 |
| 8th | 0.854 |
| 9th | 0.689 |
| 10th | 0.636 |
| Reverse | 4.886 |
Using
The transmission was installed on:
- Cadillac CT5 I (A2LL) in 2021 – …;
- Cadillac CT6 I (O1SL) in 2019 – 2020;
- Cadillac Escalade 5 (GMT1UL) in 2022 – …;
- Chevrolet Camaro 6 (A1XC) in 2017 – …
Disadvantages of the GM 10L90 gearbox
- In the early years of production, this automatic transmission caused quite a bit of trouble for owners;
- Forums are littered with complaints about jerking, jolting, or abrupt shifts;
- A number of new firmware updates have already been released, which have resolved many of the issues;
- An automatic transmission whine is often heard due to misalignment of the oil pump drive gear;
- Also worth noting is the weak plastic oil pan, but an aluminum alternative is also available.
