How does gas usage in a car work? What makes me use more or less gas?

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So I know driving takes gas, and having my lights on costs battery power. But somehow driving charges the battery? Does that cost me extra gas? And what actually costs me gas also? Does standing still with the motor on cost me gas? If I have heating on max? If I have airco on max? What kind of driving costs more or less gas? I am so confused with this all. I dont feel like I am doing anything insane in my car, but still the total amount of km I can drive varies so much on a full gas tank. It goes from 600 to 400 and I have no idea why. I hope there is someone who can explain this to me

In: Engineering

6 Answers

Anonymous 0 Comments

Biggest factor (in real life) is the person in the driver’s seat. In a modern car, electrical consumption and even AC isn’t going to make a big difference in fuel consumption.

Limit top speed and hard acceleration. Learn to anticipate traffic and coast as much as possible to slow down rather than going full speed then hitting the brakes hard. This means not tailgating – keep a good distance between your car and the car in front. Although you cannot control traffic congestion, avoiding it will save a fair bit of consumption.

There is a huge difference driving at constant highway speeds and in-town traffic. So if the driving pattern changes a lot, expect fuel consumption to vary by a lot too. The load carried also plays a factor. Make sure the car is serviced regularly.

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