I am getting ready to change my oil this weekend at 15,000 miles and got to thinking about the maintenance schedule recommended by Ford. I looked through the owners manual for the E450 and I am not sure I will follow their schedule. So let me cover each area below.
First up is probably the most controversial and that is the oil change.

I tend to change my vehicles every 5k where the manual says 7,500. I do use Mobil 1 full synthetic.
Next up is one that seems odd and that is changing the air filter every 30k. I do them at 15k and I am not sure I have seen a vehicle recommended to go as far as 30k before.
The transmission for the 5 sp. says every 60k but I usually do 30k if they are in extreme service. If any vehicle I have ever owned operated under extreme service I would say this RV with 12k - 14k lbs and towing a 3,200 lb car would qualify.
Spark plugs say to do them at 97k and coolant at 6 years or 105k which I will not have anywhere near 105k in 6 years.
So do you follow this schedule or do you have your own preferences?