I know this topic has been covered in the past, but I can't seem to find the right answer. I am planning a change over to Transynd using the double drain and fill method. For the first drain and fill,...
Dexron 3 was a GM standard, but they let it lapse, did not renew it for some reason.
Today, oil mixers can put a dexron 3 label on anything they choose because there is no standard. I'd never ever use anything labelled dex3, not even to lube door hinges.