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What transmission fluid does a 1998 Chevy Silverado take?

The 1998 Chevy Silverado takes Dexron III/Mercon automatic transmission fluid. This is the recommended fluid for the 4L60-E automatic transmission found in the 1998 Silverado.

Detailed Explanation

The 1998 Chevy Silverado was equipped with the 4L60-E automatic transmission, which was a widely used transmission in GM vehicles during that era. The 4L60-E requires the use of Dexron III or Mercon automatic transmission fluid, which is a specific type of fluid designed for use in GM automatic transmissions.

Dexron III and Mercon are both General Motors-approved transmission fluid specifications that provide the necessary lubrication, friction characteristics, and other properties required for the proper operation and longevity of the 4L60-E transmission. Using the correct fluid is crucial, as using the wrong type of fluid can lead to transmission problems and premature wear.

Fluid Capacity and Replacement

The 1998 Chevy Silverado 4L60-E transmission has a fluid capacity of approximately 12 to 13 quarts. It's recommended to change the transmission fluid and filter every 30,000 to 50,000 miles, or as specified in the vehicle's maintenance schedule, to ensure the transmission continues to operate properly.

Transmission fluid capacity: 12-13 quarts

Recommended fluid: Dexron III or Mercon

Fluid change interval: 30,000-50,000 miles

Properly maintaining the transmission fluid in a 1998 Chevy Silverado is essential for the long-term health and performance of the vehicle's drivetrain.

How much transmission fluid does a 1998 Chevy 1500 take?

The transmission fluid capacity for a 1998 K1500 depends on the transmission type: the 4L80-E automatic has a total capacity of 13.5 quarts, while the NV3500 manual transmission holds approximately 4.2 pints (or 2.1 quarts). For automatic transmissions like the 4L60E, the initial fill is around 7.7 quarts.
This video demonstrates how to change the transmission fluid and filter on a similar model: 1mBoss Adams GarageYouTube · Nov 20, 2020
Automatic Transmission (4L80-E)

Initial Fill: 7.7 quarts
Total Fill: 13.5 quarts

Manual Transmission (NV3500)

Capacity: Approximately 4.2 pints
Note: Fill until the fluid is level with the bottom of the fill plug.

Automatic Transmission (4L60E)

Initial Fill: 7.7 quarts
Total Fill: 11.2 quarts

What kind of transmission fluid does a 1998 Chevy Silverado 1500 take?

Dexron-VI ATF
General Motors recommends Dexron-VI ATF transmission fluid for use in all Chevy Silverado 1500 automatic transmissions.

What kind of transmission fluid does a Chevy Silverado 1500 take?

Chevy Silverado 1500s use DEXRON-VI Automatic Transmission Fluid (ATF), but it's crucial to always confirm this specification in your owner's manual, as it can vary by model year. DEXRON-VI is compatible with earlier models that may have used DEXRON-III, but the reverse is not true. Brands like ACDelco, Valvoline, and STP offer fluids that meet this requirement, and many full synthetic options are also suitable.
This video demonstrates how to check the transmission fluid level on a Chevrolet Silverado: 59s1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Apr 18, 2019
What you need to know

Use the correct fluid: DEXRON-VI is the correct and recommended fluid for most modern Silverado 1500s. Some older models may have used DEXRON-III, but DEXRON-VI is backward compatible.
Check your manual: Always consult your owner's manual for the most accurate information specific to your truck's year and model.
Consider synthetic options: Many quality aftermarket fluids are available, including full synthetic options, which may offer improved performance and protection.
Confirm compatibility: Ensure any fluid you choose is explicitly stated to be compatible with DEXRON-VI or meets the GM DEXRON-VI specification.
Refill amounts: A full service for a 6-speed 6L80 transmission may require around 12.4 quarts, but this can vary. It's essential to follow the proper filling procedure, which often involves adding the correct amount and checking the level accurately.

This video shows how to check and fill transmission fluid in a Chevy Silverado: 55sCodemans autoYouTube · Sep 3, 2025

What kind of transmission fluid does a 1999 4L60E take?

The correct transmission fluid for a 1999 4L60E is Dexron-VI. While Dexron III was the original specification, GM updated its recommendation to Dexron VI, which is a full synthetic and considered a compatible upgrade for older transmissions. It is backward compatible with Dexron III and newer.

Current Recommendation: Dexron-VI is the current recommendation for the 4L60E, as it is a full synthetic and backward compatible.
Original Specification: The original specification was Dexron III, which is no longer widely available as a standalone product but can be found in universal or Dex/Merc formulations.
What to Use: You can use any quality Dexron-VI fluid, and it is safe to mix with older Dexron-III if needed.
Where to buy: Look for Dexron-VI fluids from brands like ACDelco, Valvoline, or Castrol at auto parts stores.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.