Dreman
Well-Known Member
A few days ago Tonka asked if he could get away with using Dexron III for a few miles instead of the Trac's required Mercon V, and the consensus was NO. However, I have some spare Mercon V, and wonder if it would work well in my '99 GMC that takes Dexron III. At 226,000 original miles it may be better to stick with what it's used to, but Mercon V is supposed to be a better version of the same thing.
Any comments?
Any comments?