What is the best motor oil to use in my car and how often should I change it? What is the best brand of oil filter?
These questions have more answers and opinions than there are grains of sand on a beach. Read opinions at the following site and become one of the opinionated on these subjects: http://theoildrop.server101.com/cgi/ultimatebb.cgi As a general rule, if you want longer oil-change intervals and don’t mind paying more for your oil, use an oil with a synthetic base stock such as Mobil 1, Castrol Syntec, etc. Use the oil viscocity that is recommended in your owner’s manual. OIL ANALYSIS AND OIL CHANGE INTERVAL To determine the optimum oil change frequency for your vehicle requires that you perform several oil analysis during one oil change interval. For example, if your vehicle has 15,000 miles on it and the manufacturer recommends 7500 mile oil changes for normal service and 5000 miles for severe, perform an analysis at 18,750 miles, 20,000 miles, and 22,500 miles (if the first or second test shows a need for an oil change then stop there). Do not exceed the manufacturer’s normal service int
