In one of the Consumer Reports, it said that some of the things commonly believed to save gas do not work all.
Purchased Gas from Independent Gas Stations is Low Quality
Many drivers believed that independent gas stations sell low quality fuel. Some of them even believed that these gas stations dilute quality fuel with water, thus affecting engine and power efficiency.
The truth is that tight laws govern all gas stations. Also, these independent gas stations buy their stock from established oil companies. They are able to sell cheaper fuel because their stock does not have additives that clean older engines. Since most vehicles today have fuel-injection systems, buying gas with no additives do not affect the engines.
Premium Gas Provides Better Mileage
Premium gas has higher octane, so it gives more power when burnt. Large and powerful car engines can benefit from it because it minimizes pre-ignition risks. On the race track, premium gas can provide the extra boost by tenths of a second. But, it has little effect on the fuel economy on most cars.According to Consumer Reports, premium gas is only for cars that require it. Only a few cars run better on premium gas.
Open Car Windows Drag Down Gas Mileage
Drivers believe that open car windows while driving can drag down the gas mileage. But, according to lab tests, using air-conditioning in a Honda Accord resulted in a 3 miles per gallon mileage. On the other hand, open car windows had a minimal and immeasurable effect on gas mileage.
Low-rolling Resistance Tires Save Gas Mileage
Proper air pressure and maintenance of low-rolling-resistance tires can save fuel. But, even regular tires can help save gas if they are better maintained and the driver has better driving habits. Also, low-rolling-resistance tires perform less if the road conditions are wet and icy. They raise the risk of accidents.
Warming the Engine Up is Good
Previous models of cars require drivers to start the engine before driving it. The engine needed to be at a certain temperature before using it. But, because fuel injection, synthetic oils, and electronically-controlled engines, drivers no longer need to start the engine to acclimatize it to operating temperature. Also, current oils protect the cylinder when the engine is cold.
Dirty Air Filter Affect Gas Mileage
In previous years, dirty air filters affect the car’s mileage. But, these days, computer software and air flow sensors manage the mix of air and fuel in the engine. They ensure that you are able to maximize your fuel. However, dirty air filters affect the engine, especially under hard acceleration. Cars cannot accelerate faster due to dirty air filters.
The Cold Weather Allows Drivers to Get More Gas
Some drivers believe that they get more gas if the gasoline is colder. This is because cold gas is denser. It means that you can get more gas when the temperature and gas are cold.
According to Consumer Reports, tanks at gas stations are underground. As such, the difference between gas you get in cold temperature is negligible.