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2014 - 2019 Corvette: Service Bulletin: Proper Application for Mobil 1 Synthetic LV Automatic Transmission Fluid HP

DATE April 16, 2018
SUBJECT

Proper Application for Mobil 1 Synthetic LV ATF HP (19355656) and (19343529)

 

MODELS All General Motors Vehicles Equipped with 8 Speed Automatic Transmission 8L90 (M5U), (M5X), (M5T), (M5N)
TO All Cadillac, Chevrolet and GMC Dealers
ATTN Parts Manager, Parts Counter, Service Manager, Service Advisor, Service Technician, Warranty Administrator, General Manager, Fixed Operations Manager, Parts and Service Director, Parts Inventory Manager

 

General Motors part number 19355656 (Mobil 1 Synthetic LV ATF HP) available through GM Oil Distributors is the only approved transmission fluid for General Motors produced 8 Speed transmissions 8L90 RPO's (M5U), (M5X) and 8L45 RPO's (M5T), (M5N).  The packaging of 19355656 does not show the General Motors part number.

General Motors Part Number 19353429 (Mobil 1 Synthetic LV ATF HP) available through GM Oil Distributors is to only be used in the following EV transmission applications. Chevrolet BOLT with the 1ET25 (MMF), Chevrolet VOLT with the 5ET50 (MKV), Chevrolet Spark EV with the 1ET35 (MME) and the Cadillac CT6 with the 4EL70 (MRD).  The packaging shows General Motors part number 19353429 on each bottle and on the cardboard six pack box.

General Motors Part Number 19353429 (Mobil 1 Synthetic LV ATF HP) should not be used in the 8 Speed transmissions 8L90 RPO's (M5U), (M5X) and 8L45 RPO's (M5T), (M5N).                                                                                    

Thank you for your cooperation.

 

Mark A. Gordon

Brand Quality Manager

Automatic Transmissions

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