[Gatorman]

Several years ago I was managing the maintenance for Co. vehicles that we used working for Louisiana DOT. A project where off duty EMT/Firefighters worked helping stranded motorists and police/fire with incidents on the highways, [ I did that part time while working as a full time firefighter ]. The vehicles we used were 2007 1 ton F**D vans with 5.4 gas motivation. I used 10w 30 Synthetic and Wix filters at every oil change. I changed the oil/filter in each unit 1 time per month. Mileage for each unit was around 10k per month. That didn`t include idling time. The units worked 14-15 hours per day 7 days a week. In 2011 we received new F**D trucks. At the end of the prior contract the 4 Vans we were using had between 590,000-645,000 miles, all highway miles. One van was toast with a finally blown head gasket, the other 3 were using oil, around a quart every other day. I had new air filters every other month. Just to show what good oil and good filters can do for the life of engines. Peace Dale