An improvement of just one or two miles per gallon of fuel every day or trip will save thousands of dollars annually. Following best practices and procedures will go a long way in saving fuel costs. Thus it can be rightfully said that the best way to increase fuel performance is to find ways to eliminate or reduce the internal and external friction a vehicle experiences while in motion. They should also have the recommended air pressure because underinflation will increase the friction with the road surface and over-inflation can reduce their lifespan. Similarly, the friction between tires and road surface can be reduced by maintaining proper inflation and replacing old and worn out tires with modern scientifically designed energy saving tires. A bus with an aerodynamic body design will save fuel and provide higher fuel performance. This smooth flow of air around the vehicle’s body is called Aerodynamics. The reduced confrontation will reduce the resistance and load on the engine thus leading to higher fuel performance. Air should be allowed free passage around the vehicle instead of blocking it head-on. A box-shaped rectangular body will block the passage of air thus increasing drag and resistance the engine experiences. External friction points are reduced by eliminating a direct head-on confrontation with the flow of air. Low-quality oils will cost less initially but in the long run, cause premature wear and tear on the internal parts as they have less viscosity, work at higher and undesirable temperatures, and carry more contaminants. The owner is advised to use high-grade original oils to ensure that all the internal moving parts are sufficiently lubricated. Oils are used as lubricants in the engine, transmission, and several other parts to minimize internal friction. Eliminating or reducing these friction points will reduce the load and resistance the engine experiences during operation and leads to low fuel consumption, which automatically increases the fuel economy. Examples of internal friction include that between the piston and engine block, transmission and gearbox, axle and universal joints, etc. Examples of external friction include that between the tires and road surface, atmospheric air, and the vehicle’s body. This leads to higher fuel consumption and poor operating performance. When friction is high, the engine experiences more load and resistance during operations, as a result, it burns more fuel to generate the power to cut through the friction and move forward. When a vehicle moves forward on a road it encounters several types of internal and external friction which try to slow it down. Oils of different quality referred to as synthetic or semi-synthetic are often used to keep heat and friction low thus enabling freer movement. In the case of automobiles, its surface parts are creating resistance referred to as drag, the friction thus produced leads to higher levels of fuel consumption and wear and tear of its components. When two objects rub against each other they produce heat and friction. A brand new bus for sale will have an engine with no miles whereas a used or second-hand bus for sale may have more miles on its engine, it may have clogged filters, worn out fuel injectors or spark plugs, causing an obvious difference in its fuel economy. Most gasoline engines have a lifespan of hundreds of thousands of miles and do not require major repairs until they have had years of use. Remember that engine mileage is different from the overall bus because wear and tear are different that you may read in the vehicle description and because engine hours are a relevant factor. Different vehicles consume varying amounts of fuel, for example, a new bus will give better mileage than a used bus because the former has a brand new engine whereas the later’s engine has been in use for several years and may have less efficiency compared to newer vehicles and those that have more wear and tear during their use. Once owners and managers have a good idea of the fuel consumption of their vehicles, they will be in a better position to methodically cut down on fuel costs. In order to reduce fuel cost, one needs to understand the science behind how fuel is consumed by the vehicle’s engine.
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