What brand of transmission fluid does GM use?
GM relies on Dexron-family automatic transmission fluids, with Dexron VI serving as the current standard for most of its modern automatics. There isn’t a single GM-branded fluid; GM specifies Dexron VI-compatible ATF, which can be sourced from GM’s ACDelco line or from many other reputable brands.
To understand why this matters, note that GM’s transmission fluid policy centers on a specification rather than a single brand. The Dexron family has evolved over time, and different GM transmissions may require different Dexron generations. Always verify with your vehicle’s owner’s manual or a GM service bulletin for the exact specification required by your model and year.
Understanding Dexron and GM’s current guidance
Dexron is GM’s designation for a family of automatic transmission fluids. The latest widely used variant, Dexron VI, was introduced to improve heat stability and shift performance in newer GM transmissions. Older GM transmissions may still call for Dexron II or Dexron III, so the requirement can vary by model year and transmission type.
Key distinctions to know
For most GM vehicles built since roughly 2007, Dexron VI is the recommended ATF; older units might require Dexron II/III. While Dexron VI is backward compatible with many older GM transmissions, using the wrong specification can affect shifting and longevity. Always confirm the exact spec in the manual or GM service documentation.
Current guidance on brands and options
Below is a summary of the typical options you’ll encounter when selecting Dexron-compatible ATF for GM vehicles.
- Dexron VI is the current standard for most newer GM automatics and is widely available from many brands. Look for the label Dexron VI and ensure it matches GM’s specification for your vehicle.
- Dexron II/III fluids are still used in some older GM transmissions. If your manual or service bulletin specifies Dexron II/III, use that grade rather than Dexron VI.
- GM’s official aftermarket brand, ACDelco, offers Dexron VI ATF that aligns with GM specifications for use in GM vehicles (ACDelco Dexron VI ATF).
- Numerous third-party brands (e.g., Valvoline, Castrol, Mobil 1, Royal Purple, and others) produce Dexron VI ATF that meets GM’s Dexron VI specification. Ensure the product explicitly states Dexron VI on the label.
When shopping, you can choose from GM-branded ACDelco fluids or reputable third-party Dexron VI fluids, as long as the product meets Dexron VI specification and GM’s vehicle requirements. Using a non-Dexron fluid or the wrong Dexron variant can lead to degraded performance or transmission damage.
How to verify the correct ATF for your GM vehicle
To ensure you’re using the proper fluid, follow these steps:
- Consult the vehicle’s owner’s manual or the GM service bulletin for the exact ATF specification required by your model and year.
- Check the transmission dipstick or service label on the transmission for the recommended specification (e.g., Dexron VI, Dexron II/III).
- When purchasing, confirm the product label shows Dexron VI (or the specified Dexron grade) and that it meets GM’s Dexron VI specification.
- If in doubt, contact a GM dealership or certified mechanic to confirm the correct ATF for your particular vehicle.
Following the official specification ensures optimal shifting, lubrication, and longevity for your GM transmission.
Summary
General Motors does not rely on a single brand of transmission fluid. The working standard for most modern GM automatics is Dexron VI, with Dexron II/III required for older transmissions in some cases. You can use ACDelco Dexron VI ATF (GM’s official line) or any reputable Dexron VI fluid that meets GM’s specification. Always verify the exact requirement in your vehicle’s manual and rely on GM service guidance when in doubt.
Is AC Delco DEXRON VI synthetic?
ACDelco Dexron VI Premium Full Synthetic ATF is premium full synthetic automatic transmission fluid, formulated for use in a wide variety of vehicles (multi-vehicle), including American, Japanese, Korean and European standard in automatic transmission and power shift transmissions.
Does Walmart sell AC Delco transmission fluid?
ACDelco Dexron VI Full Synthetic Automatic Transmission Fluid, 12 Quarts, GM Licensed - Walmart.com.
What kind of transmission fluid does a GM 10 speed transmission take?
GM 10-speed transmissions require DEXRON ULV (Ultra Low Viscosity) automatic transmission fluid. This specific fluid is a full-synthetic, ultra-low viscosity fluid designed for the latest 10-speed transmissions and is not interchangeable with DEXRON-VI or older DEXRON fluids. Always consult your vehicle's owner's manual to confirm the correct fluid type and capacity for your specific model.
- Fluid Type: DEXRON ULV
- Viscosity: Ultra-low viscosity, which is a specific requirement for 10-speed transmissions
- Important Note: Do not use DEXRON-VI or other older fluids, as they are not compatible with the 10-speed transmission and can cause damage.
- Vehicle Specifics: Always check your owner's manual to confirm the exact fluid and capacity needed for your vehicle.
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.
