What power steering fluid does GM use?
GM typically relies on Dexron VI automatic transmission fluid for hydraulic power steering systems in most of its modern vehicles. Older GM models may require Dexron II/III ATF or, in a few cases, a dedicated GM power steering fluid. Cars with electric power steering (EPS) do not use hydraulic power steering fluid at all.
GM's fluid specifications by era
Here's a concise guide to the fluids GM has specified over different generations and what to use in your model.
- Dexron VI ATF: The current standard for hydraulic power steering systems in GM cars and trucks (roughly mid-2000s to present). Dexron VI is backward-compatible with Dexron II/III and is designed to protect seals and gears in GM PS units.
- Dexron II/III ATF: Older GM hydraulic PS systems were originally specified for these fluids. They remain acceptable in some older models if the owner's manual allows substitution, but Dexron VI is preferred where available.
- GM Power Steering Fluid (dedicated PSF): A non-ATF, manufacturer-specific fluid used in certain GM vehicles that require a dedicated PS fluid. Always verify compatibility with your model, as not all GM cars need this.
Bottom line: For most GM hydraulic power steering systems today, Dexron VI ATF is the recommended fluid. Older or specialty GM models may call for Dexron II/III or a dedicated GM PS fluid, so always check the owner’s manual.
How to identify which fluid your GM vehicle needs
The best source is the owner's manual or a GM service bulletin. In many models, the reservoir cap will indicate the required fluid (for example, Dexron VI ATF or GM Power Steering Fluid). If you're replacing or topping up fluid, use the exact specification rather than guessing by color.
If you’re unsure, consult a GM dealership or a certified technician to avoid damaging the power steering system.
- Step 1: Identify your vehicle’s year, make, and model in the manual or GM’s service information.
- Step 2: Look for the specified fluid type (Dexron VI, Dexron II/III, or a dedicated GM PSF) in the manual or on the reservoir cap.
- Step 3: Use only the specified fluid; avoid mixing different types unless the manual explicitly allows it.
Conclusion: Always verify per vehicle; EPS-equipped vehicles do not use hydraulic PS fluid.
Common questions about GM power steering fluids
Is my GM vehicle hydraulic PS or electric PS? How do I know which Dexron version to use? The most reliable answer is to check the owner’s manual or contact a GM dealer—fluid specifications can vary by year, model, and market. If you have a hydraulic PS system, Dexron VI ATF is the standard recommendation for most modern GM vehicles; older models may require Dexron II/III or a dedicated GM PS fluid.
Summary
GM’s modern hydraulic power steering systems generally use Dexron VI ATF, while older GM models may specify Dexron II/III or a dedicated GM Power Steering Fluid. Vehicles with electric power steering do not use PS fluid at all. Always verify the exact specification for your vehicle in the owner's manual or with a GM dealer to ensure proper maintenance.
Can I use other power steering fluid in my GM car?
If I recall correctly, both Honda and GM use a mineral based steering fluid. You should be fine to mix them. Be cautious about using an ``all makes/models'' steering fluid. I always recommend using OE steering fluid in anything unless you really take the time to flush out the original fluid.
What does GM use for power steering fluid?
An amber-colored, light-bodied mineral oil, ACDelco Power Steering Fluid contains a specially developed additive package to provide excellent performance in power steering systems. Expertly designed for use in any season, ACDelco Power Steering Fluid is approved for year-round use for most customers.
Is GM power steering fluid the same as ATF?
A lot of people wonder, “Is power steering fluid the same as transmission fluid?” While ATF and power steering fluid are both hydraulic fluids, ATF features different modifiers and detergents specifically designed to remove dirt and grease from the transmission system.
What is the equivalent to GM power steering fluid?
Equivalent fluids for GM power steering fluid include brands like Valvoline, ACDelco, Prestone, and Bardahl Pro, which often meet GM specifications and are listed with equivalent part numbers like 1052884 or 1050017. Always check the product label to ensure it explicitly states it meets GM specifications, especially for specific models or years.
What to look for
- GM specifications: Look for fluids that are explicitly labeled as meeting GM specifications.
- Equivalent part numbers: Check if the fluid lists the original GM part numbers as being equivalent. These can include 1052884 or 1050017.
- Brand names: Many reputable brands produce fluids that are equivalent, such as ACDelco (GM's brand), Valvoline, Prestone, and Bardahl Pro.
- Other equivalents: Some fluids may be equivalent to GM specifications by listing other manufacturer specifications they meet, like Ford and Chrysler, as well as specific GM part numbers.
Where to find equivalents
- Auto parts stores: Websites and in-store staff at places like Advance Auto Parts, NAPA, O'Reilly, and Pepboys can help you find an equivalent.
- Manufacturer websites: Check the product details on the websites of brands like Valvoline or Bardahl Pro for information on the vehicles or specifications their fluid is compatible with.
- Online marketplaces: Websites like Amazon and Walmart carry a variety of power steering fluids that meet GM specifications.
- Your owner's manual: Consult your vehicle's owner's manual for the most accurate information on the fluid type and equivalent part numbers.
