Do you need to change your transmission fluid, or do you want to do it for comfort?
Depending on your mileage, you may not need to do it yet. Read your Ford Scheduled Maintenance Guide. Our Sunseeker is on a 2010 E-450 chassis. The Service Maintenance Guide says on page 19, for trucks with the TorqShift transmission, to change the fluid and filter at 60,000 miles. It also says on page 47 that if you operate your E-450 at or near Gross Vehicle Weight, which certainly applies to most motorhomes, to change the rear axle fluid at 50,000 miles.
You have to read the Owner's Guide and the Scheduled Maintenance Guide carefully. The Owner's Guide is for all E-series products, and some of the information does not apply to the E-450.
2011 Sunseeker 3100
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