And, I believe without the OPTIONAL filter, the recommended oil change interval is every 1,000 miles versus every 2,000 miles with the filter. If you're like me and you only drive it about once a week and for occasional hauling, changing the oil every 1,000 miles is no big deal.
The weight of the oil that you need to use will vary depending on the weather (okay, specifically the temperature
). You'll need a lighter weight oil when the temperature and the birds head south, if you live where they actually have a winter season. If you plan on working on this truck yourself, I recommend getting a repro shop manual. It should have all you need to know about performing everything from regular maintenance upto rebuilding an engine or transmission. Among the maintenance items will be recommended oil change intervals and weight of oil required, based on expected temperature range.
