Carolyn
Just talking money, instead of “math”. The initial purchase of a diesel engine automobile is higher, for various reasons. But one of those reasons is the materials that a diesel engine is made of. Because of their higher compression than gasoline engines and more power transmitted to the wheels at low RPMs, the diesels are made of much tougher materials. And, as a result they last longer than gasoline engines. So you get more miles per $$$ spent on the engine and better fuel economy, too. The GM fiasco of the 1980’s with their gasoline-converted diesel engines left many people with a bad taste for diesel engines. That bad experience is fading away, slowly, as a new generation of drivers comes on the scene. Already, in Europe, 53% OF ALL NEW AUTOMOBILES SOLD ARE DIESELS! We are waaaaay behind, for many reasons, the GM fiasco just being one of them. Enviro-whackos and ETHANOL MADNESS are two big reasons................