Went back 3 years and could not find anything. Motorcraft Mercon V does not even show up in the top 5. Castrol variants show up twice. I just had a 2006 4R75E and 98000 miles self-flushed and refilled with Motorcraft Mercon V. A few years ago, I had another 2006 4R75E self-flushed and refilled with Mobil 1 ATF. 10000 miles later, the trans failed. I suspect it was because I refilled a high mileage trans with Mobil 1, and the trans didn't like it. Had it rebuilt and filled with Mobil 1, and it's doing great.
Is Motorcraft Mercon V worth using, or should I have bought Castrol? Thanks in advance.
Is Motorcraft Mercon V worth using, or should I have bought Castrol? Thanks in advance.