New Details on 2020 Corvette Stingray’s DCT Transmission
The recently released 2020 Corvette C8 is
notable for a variety of remarkable technical features, including an advanced
8-speed DCT transmission. Now, we have a great chance to get more insight into
peculiarities of this gear shifting solution thanks to a document that
specifies the desirable fluid for the DCT lubrication.
For reference, this advanced transmission unit was marked with the RPO code M1L, and came as the only variant of the gear shifting mechanism for both the C8 Coupe and Convertible models. According to formal documents, this transmission unit utilizes ACDelco Fluid-FFL-4 , which offers the necessary chemical characteristics for the 2020 Corvette’s highly-efficient gearbox, such as friction stability at various temperatures and enhanced intervals.
2020 Corvette
Stingray’s DCT Transmission
Compared to conventional automatics, the M1L unit doesn’t utilize a torque converter to start the car. Instead, the double-clutch setup activates friction discs that ensure a better responsiveness—exactly what’s needed in performance-oriented cars. The abovementioned fluid is suggested as the only option to apply with the 2020 Corvette, as different types of fluid could potentially affect operational characteristics of the DCT. The fluid was estimated with the help of the ASTM 130 Copper Corrosion test to guarantee reduced gear wear.
It has also transpired that the 2020 Corvette’s
DCT unit has a transmission cleanliness level that surpasses current standards,
which has a positive impact on the transmission operation. When it comes to
maintenance services, GM recommends regular changes of the transmission fluid
to prolong service life of the DCT unit.
