I bought Prestone Powersteering Fluid+stopleak 2-in-1 for my 6.0 diesel. Its a 2005m. I already added the fluid it to my reservoir but then i got to looking in my ownders manual and discovered that i am supposed to use MERCON ATF. What do i do??? will it hurt my truck??? should i drain it out??? or go buy MERCON to put it in??? please help...

Thanks, Adam

 

Your best option is to flush the power steering system and use the proper fluid. Here are some intructions. They are for the 7.3 but since the 6.0 has hydroboost as well it simliar.

http://www.superdutypsd.com/power_steering_flush.php

 

Welcome to FTE. As mentioned, flush it out with ATF. The hydroboost doesn't like powersteering fluid.

 

I did the same thing a couple of weeks ago,I flushed it all out and put the atf in..No problem....