Joe Gibbs Lubricants AT3 Synthetic Dex/Merc Automatic Transmission Fluid — 1 Qt

SKU: FNQG_04706
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About Joe Gibbs Lubricants Joe Gibbs Lubricants engineers high-quality automotive ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Joe Gibbs Lubricants

Joe Gibbs Lubricants engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Joe Gibbs Lubricants lineup with fast shipping and expert fitment support — order with confidence.

Precision Transmission Performance

Joe Gibbs Lubricants AT3 Synthetic Transmission Fluid is engineered to provide superior performance for automatic transmissions requiring Dex/Merc specifications. This high-performance fluid is designed to handle the intense heat and mechanical stress generated during competitive driving and high-load scenarios. By utilizing a premium synthetic base, AT3 ensures consistent shifting, reduced operating temperatures, and extended component life for your transmission system.

Benefits of AT3 Synthetic Fluid

  • Optimized for Dex/Merc requirements
  • High-temperature stability prevents fluid breakdown
  • Smooth, consistent shifting under load
  • Protects against wear and internal deposits
  • Compatible with high-performance automatic transmissions

Automatic transmissions rely on fluid not just for lubrication, but as a hydraulic medium for shifting. AT3 provides the precise frictional characteristics needed to ensure crisp, reliable gear changes while protecting sensitive internal clutches and bands. Its advanced synthetic chemistry resists the thermal degradation that causes standard fluids to lose their effectiveness, ensuring your transmission remains responsive even after hours of hard use. Whether you are building a dedicated drag car or a high-performance street machine, AT3 offers the durability and consistency required to maintain peak transmission health. Trust your drivetrain to the specialized formulas developed by Joe Gibbs Lubricants. Elevate your vehicle's shifting performance with premium fluids from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Joe Gibbs Lubricants

Joe Gibbs Lubricants engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Joe Gibbs Lubricants lineup with fast shipping and expert fitment support — order with confidence.

Precision Transmission Performance

Joe Gibbs Lubricants AT3 Synthetic Transmission Fluid is engineered to provide superior performance for automatic transmissions requiring Dex/Merc specifications. This high-performance fluid is designed to handle the intense heat and mechanical stress generated during competitive driving and high-load scenarios. By utilizing a premium synthetic base, AT3 ensures consistent shifting, reduced operating temperatures, and extended component life for your transmission system.

Benefits of AT3 Synthetic Fluid

  • Optimized for Dex/Merc requirements
  • High-temperature stability prevents fluid breakdown
  • Smooth, consistent shifting under load
  • Protects against wear and internal deposits
  • Compatible with high-performance automatic transmissions

Automatic transmissions rely on fluid not just for lubrication, but as a hydraulic medium for shifting. AT3 provides the precise frictional characteristics needed to ensure crisp, reliable gear changes while protecting sensitive internal clutches and bands. Its advanced synthetic chemistry resists the thermal degradation that causes standard fluids to lose their effectiveness, ensuring your transmission remains responsive even after hours of hard use. Whether you are building a dedicated drag car or a high-performance street machine, AT3 offers the durability and consistency required to maintain peak transmission health. Trust your drivetrain to the specialized formulas developed by Joe Gibbs Lubricants. Elevate your vehicle's shifting performance with premium fluids from GGCRACING.

Product Details

Product Description

About Joe Gibbs Lubricants

Joe Gibbs Lubricants engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Joe Gibbs Lubricants lineup with fast shipping and expert fitment support — order with confidence.

Precision Transmission Performance

Joe Gibbs Lubricants AT3 Synthetic Transmission Fluid is engineered to provide superior performance for automatic transmissions requiring Dex/Merc specifications. This high-performance fluid is designed to handle the intense heat and mechanical stress generated during competitive driving and high-load scenarios. By utilizing a premium synthetic base, AT3 ensures consistent shifting, reduced operating temperatures, and extended component life for your transmission system.

Benefits of AT3 Synthetic Fluid

  • Optimized for Dex/Merc requirements
  • High-temperature stability prevents fluid breakdown
  • Smooth, consistent shifting under load
  • Protects against wear and internal deposits
  • Compatible with high-performance automatic transmissions

Automatic transmissions rely on fluid not just for lubrication, but as a hydraulic medium for shifting. AT3 provides the precise frictional characteristics needed to ensure crisp, reliable gear changes while protecting sensitive internal clutches and bands. Its advanced synthetic chemistry resists the thermal degradation that causes standard fluids to lose their effectiveness, ensuring your transmission remains responsive even after hours of hard use. Whether you are building a dedicated drag car or a high-performance street machine, AT3 offers the durability and consistency required to maintain peak transmission health. Trust your drivetrain to the specialized formulas developed by Joe Gibbs Lubricants. Elevate your vehicle's shifting performance with premium fluids from GGCRACING.

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