Hi guys, new member here. Truck is an 05 F250 6.0 (originally) but recently converted over to a cummins ... I know, I know sorry Ford guys.

Anyway, my brother did all of the work on the swap and he went with some wolfs head transmission fluid or something like that. I want to switch it back to the correct fluid which I believe would be the Ford Mercon LV?

Is this a simple warm the truck up until shes warm, drain the oil and drop the new fluid in?

I'm only asking because the last thing I want is to destroy this transmission. If you're wondering, I used the PCS transmission controller to tune the transmission. I think it will shift smoother once I change the fluid back to Ford.

Thanks!

 

and I suppose my next question would be to ask (using the drain method above if I can), how many quarts? I lost my owners manual and I have heard many different numbers.

 

LV or SP either one, any was to find out what the wolf's head is spec'd for

 

I believe it's 8 quarts for a drain/fill

 

The bottle says meets Mercon requirements

 

how long has the wolfs head been in it

 

hmm not sure probably sitting for at least a month or more. We put maybe less than 300 miles on it

 

either LV or SP will work in it, if you want to get all of the old stuff out it'll take doing a couple of changes for it to all cycle out

 

The 5r110w has a thermostat, the only way to properly exchange the fluid is a hot flush machine. Other wise a drain and fill is about half of what you need. May be a good time to upgrade to the 2008+ pan and filter as well.