one is for gm and mercon is Ford now days they make a dexron mercon mix acceptable to both
Dexron III and Mercon V have different specs. You should not use Dexron III in place of Mercon V.
yes
The difference between dexron 3 g and dexron 3 h is that dexron 3 g is used to be the factory fill quality. Dexron 3 g was the requirement for service fill quality.
The primary difference between Dexron 2 and Dexron 3 transmission fluid is in their formulation. Dexron 3 includes a number of corrosion inhibitors to prolong the life of components.
Dexron is the GM name, while Mercon is the Ford name. Dexron III and Mercon V are essentially the same fluid. They make mixed fluids that are acceptable in either, so I wouldn't worry about it.
Dexron Mercon 3
atf dexron mercon 3 is what it calls for.
You want to use dexron / mercon 3
Your transmission takes Dexron 3. Make sure you check it with the vehicle in park when the car is warmed up. The fact that it has overdrive does not matter, it is still Dexron 3, sometimes marker Dexron 3 / Mercon.
Mercon III is for older trucks up to ~2000, for an 05 truck I'd go Mercon V. Check with the dealer or knowledgeable tranny shop.
The recommended automatic transmission fluid is DEXRON-MERCON, and it requires 3 quarts.
You can use ATF+3 with all older Chrysler transmissions. Do not use ATF+4 Dexron, Mercon, or any other fluid.
Depends on the year model. 98-99 uses Mercon/Dexron. 2000 and newer use a fully synthetic like Castrol Syngard or Volvo dealer supplied factory fluid. DO NOT use Mercon/Dexron in anything newer than a 99 or you could have a nice little 3 or 4 thousand dollar repair.