A boat of similar size with a regular engine would cost half as much to insure, he said.

Number 6430 was a regular engine on the old Tavistock South branch line and would often run with two autocoaches.

It has a different torque and acceleration than a regular engine.

Most European countries, for example, have encouraged drivers to buy cars with diesel engines, which burn 30 percent less fuel than regular engines.

According to his concept, the engine had three banks of four cylinders; hence it was short like a V8 but taller than a regular V-banked engine.

More submersibles than true submarines, U-boats operated primarily on the surface using regular engines, submerging occasionally to attack under battery power.

The regular four-cylinder engine was supplemented by a light six and a supreme six.

Copal poured into a regular engine will run cleaner and more efficiently than gasoline.

The rotary engine was designed to combine greater efficiency and smoother power delivery that a regular engine.

Q. Can you run a regular engine with hydrogen, without fuel cells?