trans fluid compatability
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Junior Member
Joined: Oct 2015
Posts: 11
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From: San Tan Valley, Arizona
trans fluid compatability
2001 f159 xl 4.6 twd --installing a used/warrantied 4R70W 14 bolt auto trans when I noticed one qt of dexron VI had been added to the mercon V I had purchased for this trans swap. The dexron was meant for power steering. So, do I drain this new mix and refill with all mercon V or am I ok allowing these two to co-mingle like a couple of 3rd cousins and hope for things to be ok?
Senior Member
Joined: Feb 2019
Posts: 187
Likes: 24
From: Mount Vernon, WA
2001 f159 xl 4.6 twd --installing a used/warrantied 4R70W 14 bolt auto trans when I noticed one qt of dexron VI had been added to the mercon V I had purchased for this trans swap. The dexron was meant for power steering. So, do I drain this new mix and refill with all mercon V or am I ok allowing these two to co-mingle like a couple of 3rd cousins and hope for things to be ok?
www.motorcraft.com/content/dam/ford-motorcraft/en_us/motorcraft_global/products/chemicals_and_lubricants/transmission_fluids/Líquidos%20de%20transmisión-fluidchart.pdf