Who makes GM transmission fluid?
GM does not manufacture its own automatic transmission fluid. The company specifies Dexron VI as the standard for most GM transmissions, and fluids that meet the Dexron VI specification are produced by several major lubricant brands around the world.
What GM transmission fluid is used today
General Motors adopted Dexron VI as the universal automatic transmission fluid (ATF) specification for most of its modern automatic transmissions. Dexron VI is designed to be backward compatible with many older Dexron types, though some older GM units may require Dexron II or Dexron III depending on the model and year. GM relies on external manufacturers to produce fluids that meet the Dexron VI standard rather than making the fluid in-house for consumer sale.
Which brands make Dexron VI ATF
To help shoppers, here are the major brands that produce Dexron VI ATF that meets GM's specification.
- ExxonMobil — Dexron VI ATF (Mobil-branded products)
- Castrol — Transmax Dexron VI
- Valvoline — Dexron VI ATF
- Motul — Dexron VI ATF
- Royal Purple — Dexron VI ATF
- TotalEnergies — Dexron VI (Quartz line and related products in various markets)
Note: Availability and product naming can vary by region and retailer. Always check the label to confirm Dexron VI and GM compatibility.
How to choose the right Dexron VI fluid for your GM vehicle
Before selecting a product, consider the following guidelines.
- Verify your vehicle’s requirement in the owner's manual or on the transmission dipstick/fill cap. Most newer GM automatics require Dexron VI.
- Look for a product that explicitly states Dexron VI and GM compatibility on the bottle.
- Consider any additional performance needs or dealer recommendations for your specific model and climate.
- Avoid mixing different Dexron generations; if you're unsure, a full drain-and-fill with Dexron VI is safer than topping up with a non-Dexron VI variant.
Using a fluid that does not meet Dexron VI can lead to shifting issues, wear, or damage in modern GM transmissions, so accuracy matters.
Common questions about GM transmission fluids
- Is Dexron VI the only GM transmission fluid? Dexron VI is the current standard for most GM automatics, but some older transmissions may require Dexron II/III or other specifications. Always consult the vehicle’s manual for exact requirements.
- Do GM dealerships use a single source for Dexron VI fluids? No. GM works with multiple suppliers to meet the Dexron VI specification, and dealerships stock fluids from several brands that meet Dexron VI.
- Can I mix Dexron VI with older Dexron variants? Dexron VI is designed to be backward compatible in many cases, but mixing generations is not recommended. When in doubt, flush and refill with Dexron VI.
For precise guidance, refer to GM's vehicle-specific service information or consult a qualified technician.
Summary
GM does not produce its own transmission fluid for consumer sale. The Dexron VI specification, which GM uses for most of its automatics, is manufactured by a range of major lubricant companies, including ExxonMobil, Castrol, Valvoline, Motul, Royal Purple, and TotalEnergies. When servicing a GM transmission, look for fluids labeled Dexron VI and GM compatibility to ensure proper performance and protection.
What company makes GM transmissions?
General Motors (GM) is an American car designing and manufacturing company. It manufactures its own automobile transmissions and only occasionally purchases transmissions from outside suppliers as needed.
Does Walmart sell AC Delco transmission fluid?
ACDelco Dexron VI Full Synthetic Automatic Transmission Fluid, 12 Quarts, GM Licensed - Walmart.com.
What brand of transmission fluid does GM use?
DEXRON-VI
Genuine GM Fluid 88861954 DEXRON-VI Automatic Transmission Fluid - 1 Gallon.
Who makes ACDelco transmission fluid?
ACDelco transmission fluid is made by General Motors (GM), which owns the ACDelco brand. While GM is the parent company, the actual manufacturing and production of specific fluids may be outsourced to various partners, such as ExxonMobil for some oils, or other companies that meet GM's specifications and standards for quality. ACDelco products include both genuine GM original equipment parts and other aftermarket parts backed by GM.
- Ownership: General Motors owns the ACDelco brand.
- Production: Some sources suggest that while ACDelco is the brand, the manufacturing may be done by different companies that meet GM's standards. For example, ExxonMobil is known to manufacture ACDelco motor oil.
- Aftermarket and OE: ACDelco provides both Genuine GM original equipment parts and aftermarket parts.
- Quality Assurance: All ACDelco fluids are manufactured to meet the quality standards set by General Motors.
