Transmission service

Start by identifying your vehicle’s transmission type and the OEM ATF specification recommended in the owner's manual. Then match that spec to the options in this listing, such as Toyota T-IV or WS ATF, MERCON V, Matic-J, SP-IV, or Dexron-VI. Consider whether a full-synthetic formulation is appropriate for your driving conditions and mileage. Finally, confirm the service interval and avoid mixing different ATF types.

Match the ATF specification exactly to what your transmission requires as stated in the manual. For Toyota transmissions, look for T-IV or WS ATF; for Ford outfits use MERCON V; Nissan uses Matic-J; Hyundai uses SP-IV; and many GM-style transmissions take Dexron-VI. Choose a full-synthetic option if your driving is heavy or you want extra protection, but never mix different specifications.

A beginner should follow the vehicle’s OEM specification and select a trusted ATF that matches that spec from the listing. A professional can evaluate climate, loads, and mileage to decide if a higher-performance option, such as a full-synthetic fluid, is warranted within the compatible specification.

Start by confirming the correct ATF, then drain old fluid, replace the filter if applicable, and refill to the recommended level with the matched fluid. Inspect seals for leaks and replace them if needed, and dispose of old fluid responsibly. Do not mix different ATF types and use the proper equipment to avoid air entering the transmission.

Match the brand and OEM spec: Toyota vehicles commonly require T-IV or WS ATF; Nissan engines use Matic-J; Hyundai cars use SP-IV; Dexron-VI is compatible with many GM transmissions; Ford vehicles often use MERCON V. Always confirm compatibility with your vehicle’s manual and avoid mixing specifications.

Yes, choose a size that fits your service needs and a brand with a proven track record for your spec. Most services use around four litres or quarts of ATF, and you should pick the specification that matches your transmission rather than focusing on color or brand alone. Store fluids properly and never mix different ATF types.