I've own this truck for about 20 years and have only used Mobil 1 synthetic oil in it. I normally only use this truck about 3000 miles a year. It always sits outside in the back yard so the paint and body reflect that. the inside is in good shape except for the headliner that is sagging. the truck runs and drives great. The heavy duty rack in the back is great for hauling long heavy items. Tires are good.