ok then based on the article -
1) “The previous MOPAR ATF+3® formulation was discontinued in 2005 and ATF+4® is recommended for all transmissions filled with ATF+3®.”
2)"You can use ATF+3 with all older Chrysler transmissions"
then i should be able to use 4 in my 1969 727 right?
While mine was leaking profusely through the shifter seal I was topping mine off with ATF+4. But it's driven VERY little. I've had the leak repaired and fluid changed, the shop filled it with a "global synthetic", I've seen the spec sheet, it's compatible with everything, including things that are incompatible with each other?
Check it out:
http://www.service-pro.com/documents/WarrenSpecs/WA-GlobalFullSynMulti-VehicleATF.pdf I dunno whether to leave it in there and be happy or what.
Robert