With all-round low costs, the Chevrolet Cruze equipped with a diesel mill can offer a huge driving range and great MPG ...

The B6.7 Octane has diesel power characteristics—up to 300 horsepower and 660 pound-feet of torque—but it runs on gasoline.

"I'm a diesel truck mechanic and I have struggled with lifting and positioning clutches after they are already assembled," said an inventor, from Rialto, Calif., "so I invented the Input Shaft ...