Is there a spot to fill the fluid on the 07 Expys and up, ie plug etc on the tranny? I am going to service mine, I know Ford says about going lightyears without it, but for my own preference. I tow a fairly heavy trailer.

 

My tranny was just serviced and there is no dipstick and it requires somekind of special tool to change the oil.

 

I just had my 30,000 mile service done and enquired about transmission service in towing service. The dealer noted it's not due until 60,000 miles when towing (and 120,000 miles non-towing). Since the drive train has a 5 year 50,000 mile warranty I'll take their advice!

Our camper trailer is no more than 5,000 pounds and I specified the 9,000 pound towing package to keep stress and strain minimized.

I fitted a transmission temperature gage to monitor this and she runs below 200°F even on the steepest terrain in PA and Western MD.

-- Chuck