Though many people do not drive there cars hard enough to need synthetic oils being able to go 10k miles before a change they are cheaper in the long run though more expensive per oil change. And when living in an area where temperatures get below -20 it can really help with starting. Also if care about the environment they are better for it too.

Although many people do not drive there cars hard enough to need synthetic oils, being able to go 10k miles before a change makes them cheaper in the long run, though more expensive per oil change. And when living in an area where temperatures get below -20, it can really help with starting. Also if you care about the environment, they are better for it too.