Dextron/Mercon Trans Fluid Quart

The Dextron/Mercon Trans Fluid Quart by Valvoline is an essential maintenance product for vehicle owners and technicians working on domestic automatic transmissions built from the 1980s through early 2000s. This fluid formulation bridges two major OEM specifications—General Motors Dextron and Ford Mercon—making it a versatile choice for shops and DIY mechanics who service multiple vehicle brands. Whether you're topping off a low transmission reservoir or performing a complete fluid service, this single-quart container provides the precise fluid chemistry your transmission requires to maintain proper hydraulic pressure, cooling, and component protection.

Valvoline engineered this dual-spec formula with advanced detergent and anti-wear additives that dissolve varnish deposits, protect against oxidation across a wide temperature range, and condition seals to prevent leaks common in older transmission systems. The fluid's carefully balanced viscosity ensures it flows freely in cold starts while maintaining film strength during highway driving and towing, critical for preventing wear on pump gears, clutch plates, and valve bodies. This formulation meets the exacting performance demands of both GM and Ford transmission architectures, eliminating the need to stock separate fluids for different applications in a busy service environment.

Mechanics and transmission shops rely on Dextron/Mercon Trans Fluid for routine maintenance intervals and as a top-up fluid for vehicles between major services. The one-quart size is ideal for addressing slow leaks, compensating for normal wear, or keeping inventory on hand for quick customer repairs. Compatible with a broad range of GM Turbo 350, 400, and 700-R4 transmissions, as well as Ford C4, C5, and AOD units, this fluid delivers consistent results across decades of automotive engineering. Store this product in a cool, dry location away from direct sunlight to preserve the additive package, and always consult the vehicle's service manual for the correct fluid specification before installation.