yes
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 it can but remember not to mix oils
No
Not recomended.
No, it is not a good idea to mix Mercon and Type F transmission fluids. They have different friction modifiers and are for different purposes. If you have a 1998 or newer Ford vehicle, you should use Mercon V; earlier models require Mercon IV. You can convert a Mercon III/IV vehicle to Mercon V by having a complete flush done at a competent transmission shop.
dexron 3 replaces dexron 2, so you could mix them but the dexron 3 is better
It is generally not recommended to mix Mercon LV and Mercon V transmission fluids, as they are designed for different specifications and performance characteristics. Mixing them could lead to potential transmission issues or reduced performance. It's best to use the fluid specified by the vehicle manufacturer to ensure optimal operation and longevity of the transmission. Always consult your vehicle's owner manual for the appropriate fluid type.
Yes, ATF 4 can be used with ATF 3. THe only exception is do not use ATF 3 in a vehicle that requires ATF 4.
Brand is not important just use the right type for your trans-either Dexron, Type F, etc. etc.
Yes you can mix the two, make sure you use a stainless steel spoon though.
Yes dextron 6 can be used in applications otherwise requiring dextron 3