What is Mercon ATF?
DEARBORN, MI – Ford Customer Service Division (FCSD) has announced MERCON V as the replacement for MERCON Automatic Transmission Fluid (ATF). Automatic transmissions, power steering systems and manual transmissions previously requiring MERCON must, as of July 1, be serviced with MERCON V.
Castrol® Transmax™ Mercon® V automatic transmission fluid is certified for use in Ford vehicles requiring Mercon® or Mercon® V. Enhanced friction durability provides superior transmission life and promotes smooth shifting. Exceptional thermal protection guards against transmission wear.
- The fluid specification for Dexron-VI was introduced in 2005, and was first used as the GM factory-fill automatic transmission fluid for model year 2006.
- PEAK® DEXRON® III/MERCON® Automatic Transmission Fluid (ATF) is recommended for use in automatic transmissions in GM, Ford (except where Ford M2C33-F is specified) and other domestic and foreign vehicles requiring DEXRON® III, IIE AND II, as well as MERCON® ATF.
- DESCRIPTION: ATF DEXRON III H is special synthetic fluid particularly formulated and developed for the most modern automatic transmission gears on heavy duty vehicles, power steering, hydraulic systems, converters, "Powershift" reduction units and similar applications.
It is a fully synthetic ATF. It is not compatible with earlier Mercon fluids, so it should neither be mixed with Mercon or Mercon V used to replace those fluids. It is not compatible with any other fluid, either. Mercon SP—a version of Mercon V with an enhanced additive package.
- The W actually stands for "winter" but basically means "viscosity when cold." So 10W-40 oil acts like SAE 10 oil when it's cold, but acts like SAE 40 oil when it's hot. 0W-20 oil acts like SAE 0 oil when it's cold, but acts like SAE 20 oil when it's hot. Motor oil.
- Toyota says if you use full synthetic oil, it's a 10,000-mile oil change interval. Toyota also says that if you use a semi-synthetic or conventional oil, the oil change interval is 5,000 miles."
- Previously, the owner's manual suggested changes every 10,000 miles in mild conditions and 5,000 miles in severe conditions. It's not just the fast oil change outlets. My sticker from my trusted mechanic states that I'll need a change in 3,000 miles or three months.
Mercon V—the most common Ford ATF in late model Fords, it is very much like Dexron III. It is a fully synthetic ATF. It is not compatible with earlier Mercon fluids, so it should neither be mixed with Mercon or Mercon V used to replace those fluids. It is not compatible with any other fluid, either.
- Valvoline ATF+4® is a high-quality synthetic transmission fluid specifically engineered to protect and prolong the life of Chrysler automatic transmissions.
- New automatic transmission fluid has a bright to dark red, translucent color. The red color is the result of dye that is added to the transmission fluid for identification. Color is NOT an indication of the quality of the fluid nor the condition.
- Substitutes for Dexron III Transmission Fluid. General Motors (GM) produced the Dexron line of automatic transmission fluids beginning in the 1940s. Dexron III (H) and Dexron III/Saturn are upgrades to Dexron III fluids, and Dexron VI became the official replacement to Dexron III.
Updated: 26th November 2019