I have heard that if you have used the same motor oil for the life of the car, then the best recommendation is to continue to use the same oil. Is this so?
Not so, switching over from petroleum oil to synthetic oil is one of the simplest and easiest ways to increase fuel mileage, power and engine longevity. The only time it isn’t recommended is when your engine has been neglected and you have a major buildup of sludge inside the engine. Since the synthetic is a highly detergent oil a bunch of sludge might come off and plug up the oil pump intake screen and cause catastrophic engine failure. Otherwise you can change over to synthetic slowly. Put in a quart, run it till your oil change interval comes around. Next time put in 2 quarts run it and at the next oil change then change to 100% synthetic oil.
Not so, switching over from petroleum oil to synthetic oil is one of the simplest and easiest ways to increase fuel mileage, power and engine longevity. The only time it isn’t recommended is when your engine has been neglected and you have a major buildup of sludge inside the engine. Since the synthetic is a highly detergent oil a bunch of sludge might come off and plug up the oil pump intake screen and cause catastrophic engine failure. Otherwise you can change over to synthetic slowly. Put in a quart, run it till your oil change interval comes around. Next time put in 2 quarts run it and at the next oil change then change to 100% synthetic oil.
