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i think its the old Toyota diesel plus there"unkillable"
94-98.5 dodge cummins 12 valve
The Ford power stroke 7.3L diesel is one of the most reliable engines in production. Many will perform well over 500,000 miles.
Valves
"economical" has no comparative or superlative form. You would say "more economical" or "most economical."
A four stroke engine is like the one in most cars today.
Number 1, the intake stroke. Weather it is fuel injected or has a carburetor makes no difference. Most internal combustion engines today are 4 stroke engines. The four strokes refer to intake, compression, combustion and exhaust strokes that occur during two crankshaft rotations per working cycle of Otto Cycle and Diesel engines. The four steps in this cycle are often informally referred to as "suck, squeeze (or squash), bang, blow." Intake stroke
Most gasoline engines are four stroke engines which is also known as the Otto Cycle. 1) Intake 2) Compresson 3) Ignition 4) Exhaust (four strokes)
The most efficient to date is a 2-stroke design. it is a turbo desiel 2-stroke. but normally a 4-stroke is usually the more efficient of the two engine types.
Benzin, diesel, coal, industrial oil
Most small engines are two stroke because you can get more power from a smaller engine with two stroke rather than a four stroke engine. It takes less to cool and to operate the engine.
Suck My @#$&