Is MERCON V safe for use in P/S pump assemblies? - Ford F150 Forum

bucsman76 · 05-06-2012, 11:26 PM

Owners manual for my 02 F150 calls for MERCON in the P/S reservoir, but good luck finding it. I did find some DEX/MERC stuff at Walmart but was wondering if MERCON V will work in the P/S. Anyone use the MERCON V or DEX/MERC in their P/S?

lifted98_f150 · 05-07-2012, 01:19 AM

dex merc is the same as mercon 3 will be fine but mercon 5 supercedes any previous mercon atf which also will be fine to put in your p/s

bucsman76 · 05-07-2012, 02:01 PM

My only concern with using MERCON V is that a few folks I know said after they put it in their P/S, they started hearing a whining or small grinding noise? Not sure if that was because the pump had had it or the fluid.

lifted98_f150 · 05-07-2012, 11:22 PM

so dont use merc v then. use 3