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delco1946 · 06-15-2021, 02:06 PM

Use Dexron/Mercon. I did a lot of searching on these forums - lots of knowledgeable folks. I even had to "fight" the tranny rebuild shop on this - much to my dismay they used type F anyway. F does not = All Ford lol. Type F can work, but it shifts kinda hard (too hard IMO).

I've also asked my mechanic and folks on here - tranny fluids can mix fine despite the fact that mixing feels like sacrilege. If its low and you can't get around to replacing the existing fluid, I would just top it off with Dex/Merc - much better than letter it run too low.

06-15-2021, 02:06 PM	#4
delco1946 Senior Member Join Date: Dec 2017 Location: Gladstone, OR Posts: 170	Re: New baby 1953 Merc Use Dexron/Mercon. I did a lot of searching on these forums - lots of knowledgeable folks. I even had to "fight" the tranny rebuild shop on this - much to my dismay they used type F anyway. F does not = All Ford lol. Type F can work, but it shifts kinda hard (too hard IMO). I've also asked my mechanic and folks on here - tranny fluids can mix fine despite the fact that mixing feels like sacrilege. If its low and you can't get around to replacing the existing fluid, I would just top it off with Dex/Merc - much better than letter it run too low.