E450 1st Transmission Oil Change?
I've looked through all the manuals and searched for the answer, but to no avail. I remember being told that it is at 5 years or 60,000 miles. I am at 5 years. Any suggestions? Also, what about ...
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Check the manual. Over the years, the service specifications change, particularly as improved lubricants come into use.
My 2003 chassis it was at 30,000 miles (the severe duty interval. When I went in, the fluid was looking pretty burnt. The dealer handled it as a flush (but also changing the filters) and replaced the fluid with a new Mercon specification. Ford no longer licenses manufacturer of the Mercon spec that was OEM in 2003.
I found the same thing with my 2001 manual transmission truck. I did a change at about 40,000 miles after a check on condition of the fluid. OEM was a Mercon no longer licensed, the replacement was a synthetic gear oil. Shifts got a whole lot smoother, the new fluid was like magic to the synchronizers.
My 2003 chassis it was at 30,000 miles (the severe duty interval. When I went in, the fluid was looking pretty burnt. The dealer handled it as a flush (but also changing the filters) and replaced the fluid with a new Mercon specification. Ford no longer licenses manufacturer of the Mercon spec that was OEM in 2003.
I found the same thing with my 2001 manual transmission truck. I did a change at about 40,000 miles after a check on condition of the fluid. OEM was a Mercon no longer licensed, the replacement was a synthetic gear oil. Shifts got a whole lot smoother, the new fluid was like magic to the synchronizers.
