'05 Oil Change Intervals?

[Buffalo]

Do the '05's require a 3750 mile oil change interval using the Schedule B, Severe Duty, or is it 7500 miles?



Thanks.



Joe F. (Buffalo)

 

[DJennings]

7500 miles is schedule B. 15000 miles is schedule A



Dodge book says you can go 15000 miles if you don't tow, don't drive in dusty conditions, don't drive in stop and go traffic, don't take short trips, don't drive when its below 30 degrees, you get the picture.



My 04. 5 Owners manual (the thick book) says 7500 Schedule B/15000 schedule A, but there was a maintenance book that had the 3750/7500 mile intervals.



The cummins website makes no mention of 7500 mile intervals. They say 15000 miles for oil changes.