what do 4 cycle engines mix in with gasoline during combustion

Thermal efficiency is the percentage of energy - fuel - that generates work.

What Thermal Efficiency Isīoth the layman’s definition and the strict definition of thermal efficiency are two of the simplest explanations in physics to understand. Thermal efficiency, for all practical purposes, is “gas” mileage.

The reason being, thermal efficiency is a byproduct of all the other combustion-specific variables including fuel density, the energy density of a fuel, the compression ratio of an engine, and the air-to-fuel mix ratio fed into an engine. No other variable plays a bigger role in determining fuel economy than thermal efficiency. Of the three most relevant variables which determine fuel economy, thermal efficiency is the most influential. The three variables that influence the fuel efficiency of an engine to the greatest degree are fuel density, combustion efficiency, and thermal efficiency. But, while those variables play a role in determining fuel efficiency, they are by no means the most influential factors. Concerning the fuel efficiency of an engine used for locomotion, transport, and mobility, factors like the weight of a vehicle, terrain, and air-flow dynamics play a role. If mounted in a car, pick up, truck, boat, ship, a piece of heavy equipment, etc., even more, variables come into play with respect to the fuel efficiency of an engine.

Thermal efficiency, compression ratio, and fuel density are the primary factors that determine the fuel efficiency - a.k.a.

What do 4 cycle engines mix in with gasoline during combustion