I currently get oil changes religiously at 3,000 mile intervals in my 2006 F-150. I want to extend those oil changes out further to 7,000 miles or more to save money. Is switching to synthetic oil a viable option if I am running ethanol gas in my truck.
Synthetic oil is a good choice but is more expensive then regular oil. So the savings per oil change as per mileage driven from one oil brand to the other might be almost the same.
Oil change standards have changed through the years, with the new technology in fuel and oil the oil change schedule in most cases has been raised to 5,000 miles.
You would be better off if you keep doing what you are doing with your truck and change the oil at 5,000 miles to save some money.
We changed our PM schedule for all non emergency vehicles to 7500 miles or 6 months with conventional oil. We have not seen any adverse effects for over 2 years since the switch. We saved a lot as we now see them 2 times a year instead of 3. This was done due to lack of funding to hire technicians, buy new vehicles and just a lack of budget money overall. The economy finally caught up to our city. Just something to think about. You need to be more vigilant about checking and topping off the fluids.