My brother-in law runs a ambulance service. He has two Ford's, a 96 E-350 diesel and a 98 E-450 diesel. Both are high mileage (180K+) and are running 3K interval oil changes currently. I'd like to find out if there is a "more economical/better for the engine" solution. Keeping these engines running for a long time is paramount to the cost. I don't know the exact kind of filtration system they have, the ambulance body company may have upgraded it.
1. What oil would be best/most cost effective? (he can buy oil in bulk if necessary)
2. What change interval?
Thanks everyone!
1. What oil would be best/most cost effective? (he can buy oil in bulk if necessary)
2. What change interval?
Thanks everyone!