Castrol Transmax ATF+4 Automatic Transmission Fluid 1 Qt Pack of 6, Full-Synthetic Chrysler/Mopar Approved

This full-synthetic ATF from Castrol is formulated to meet or exceed Chrysler and Mopar specifications for ATF+4, ATF+3 and related ATF types. It is designed to deliver stable viscosity across a wide temperature range, support smooth shifting, and provide enhanced wear protection for transmissions in Chrysler, Dodge, Jeep, Ram and related Fiat Chrysler models. The product below is sold as six 1‑quart bottles—convenient for a single servicing or a two-bottle refill depending on application.

How does Transmax ATF+4 protect automatic transmissions during daily driving?

Transmax ATF+4 uses a full-synthetic base with a balanced additive package to reduce friction, resist thermal breakdown, and minimize wear on clutch packs and valve bodies. That stability helps preserve transmission life under regular city commuting and highway conditions.

• Full-synthetic formulation for consistent viscosity at low and high temperatures
• Advanced anti-wear additives protect gears and clutch surfaces
• Low-foam properties maintain hydraulic control and shift quality

Will this fluid work for my Chrysler, Jeep, Dodge, or Ram vehicle?

Castrol Transmax ATF+4 is certified and approved for use in virtually all Fiat Chrysler vehicles that specify ATF+4, and it is backward-compatible with many ATF+3 and ATF+2 specifications. Always confirm your vehicle’s recommended ATF type in the owner’s manual or manufacturer service guide before topping up or replacing the fluid.

• Meets Fiat Chrysler ATF+4 requirements and exceeds ATF+3 standards
• Approved for Mopar ATF plus3 and related Chrysler ATF types where listed
• Suitable for applications requiring ATF+2 or ATF+2 Type 7176 when specified

What performance benefits should I expect after switching to Transmax ATF+4?

Users typically notice crisper, smoother gear changes and improved transmission responsiveness due to the fluid’s engineered friction characteristics and superior base oils. Enhanced thermal stability also helps prevent viscosity loss and deposit formation over extended drain intervals.

• Smoother shift feel at both cold starts and high operating temperatures
• Improved protection against oxidation and sludge buildup
• Consistent hydraulic performance for reliable shift timing

How should I use this 1‑quart pack when servicing my vehicle?

The pack of six 1‑quart bottles provides flexibility: use one quart for small top-ups or multiple quarts for a full pan refill depending on the vehicle model. Follow the vehicle manufacturer’s specified fill volumes, service procedures, and disposal guidelines for used fluid.

• Each bottle contains 1 US quart (946 mL) for precise measuring
• Use the recommended number of quarts for full drain-and-fill or partial service
• Dispose of used fluid responsibly at an authorized recycling center

Who is this for: Castrol Transmax ATF+4 (1‑quart, pack of 6) is aimed at owners and technicians of Fiat Chrysler vehicles who need a manufacturer-approved, full-synthetic ATF that supports modern shift quality and transmission longevity. It’s well suited for DIYers doing scheduled service who prefer to keep multiple bottles on hand, and for small shops that service Chrysler, Dodge, Jeep and Ram models requiring ATF+4 or compatible fluids.