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2. How to spend less on gas: Fix your car. Drive slower ... - AOL

   www.aol.com/news/spend-less-gas-fix-car...

   The engine powers the air conditioner on most cars, which means that running the AC burns fuel, reducing gas mileage by 1 to 4 mpg. And the hotter it is out there, the more energy your vehicle's ...

3. Energy-efficient driving - Wikipedia

   en.wikipedia.org/wiki/Energy-efficient_driving

   In the PnG strategy, the control of the engine and the transmission determines the fuel-saving performance, and it is obtained by solving an optimal control problem (OCP). Due to a discrete gear ratio, strong nonlinear engine fuel characteristics, and different dynamics in the pulse/glide mode, the OCP is a switching nonlinear mixed-integer ...

4. 10 Tips to Improve Your Gas Mileage - AOL

   www.aol.com/news/2011-05-26-ten-tips-to-improve...

   10 Tips to Improve Your Gas Mileage. Jorgen Wouters. Updated July 14, 2016 at 9:17 PM. Tips for Improving Your Gas Mileage. With a gallon of gas approaching -- or even exceeding, depending on your ...

5. Fuel saving device - Wikipedia

   en.wikipedia.org/wiki/Fuel_saving_device

   For example, if an automobile typically gets 20 miles per US gallon (12 L/100 km) with a 20% efficient engine that has a 10:1 compression ratio, a carburetor claiming 100 mpg ‑US (2.4 L/100 km) would have to increase the efficiency by a factor of 5, to 100%. This is clearly beyond what is theoretically or practically possible.

6. Engine tuning - Wikipedia

   en.wikipedia.org/wiki/Engine_tuning

   Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase the engine's power output, economy, or durability. These goals may be mutually exclusive; an engine may be de-tuned with respect to output power in exchange for better economy or longer engine ...

7. Engine efficiency - Wikipedia

   en.wikipedia.org/wiki/Engine_efficiency

   With the help of geometrically variable turbo-charging system (albeit more maintenance) this also increases the engines' torque at low engine speeds (1,200–1,800 rpm). Low speed diesel engines like the MAN S80ME-C7 have achieved an overall energy conversion efficiency of 54.4%, which is the highest conversion of fuel into power by any single ...