I went to a Mercedes dealer today to buy ATF fluid for my car. So I told him I have a 1987 260E and he gave me two jugs of Mobil ATF D/M. I told him my car uses Dextron III but he says this is what Mercedes uses now as its better than Dextron3. Anyway I paid for the stuffs but feel reluctant to use it as nowhere on the bottle does it says Dextron3. Am I right to be worried? Anyone here still have an older w124? What do you use?