Tyre Talk: Gas Myths Debunked

For so long, we’ve believed myths surrounding motor fuel. There are some we’ve never doubted because grandpa or daddy told us and we trust their word completely. While others might have had you scratching your head and wondering, “Wait…what?”

The truth is, while many of us can drive, we don’t always understand everything about our cars, especially when it comes to its fuel system. That’s why we’ve decided to debunk five of the most common gas myths out there. Who knows, having some light shed on these misconceptions might end up saving you some extra dollars in the long run.

You get more value for your money when you fill your tank in the morning.

Many of us believe that gas is denser when cold, so if we fill our tanks in the morning, then maybe we’ll be able to get more gas. Not true! Gasoline is usually stored in underground tanks, which help to keep it at a constant temperature, so filling up in the morning or at midday does not make much of a difference. The fuel going into your car will, more or less, be the same temperature, no matter what time of day you choose to fill your tank. So, you don’t need to get out of bed at the crack of dawn; you can just buy gas whenever you need it.

Stick Shifts offer better fuel economy than automatics.

Good news for automatic car owners! This myth is false. It was right back in the day, but, with the technological advancements, cars with automatic transmissions usually get the same gas mileage as vehicles with manual transmissions. It’s also good to note that in some instances, automatics sometimes do better in the gas department as well.

The heavier the vehicle, the more gas it burns. 

This belief is true, the more weight on or in the vehicle, the more gas it will burn. So, driving with a packed vehicle will increase your fuel consumption. If you can, avoid keeping unnecessary items in your car or be mindful of the number of people you carry in at any given time.

Running your air conditioner is better for fuel economy than opening your windows.

This one can be a head-scratcher, but the truth is, both options can use up your fuel, based on the circumstances. Running your car’s A/C puts more pressure on the engine, which means you’ll need more fuel.  The same goes for driving with your windows down. If you’re driving fast with the windows down, then your car will have a drag, putting more pressure on your engine. However, we suggest using your car’s AC while driving at “highway speeds” to reduce the drag.

But before you drive off, here are a few tips you can use to improve your car’s fuel efficiency:

  • Park your car in the shade or use a visor, so the cabin doesn’t get as hot, then you can use lower A/C speeds.
  • Let the hot air out of your car before using the A/C.
  • Turn on the A/C after you begin driving or after airing out the cabin. Most A/C systems will cool the vehicle faster while driving, putting less pressure on your car’s engine.

Topping up your gas tank puts extra gas in your car

As great as this sounds, it’s not something you should practice. Topping up your gas tank can hurt your car. When you fill your gas tank to the top, there’s not enough room for your vehicle’s evaporative system to do its job. Topping up can also cause pressure to build up in your tank. This build-up can cause the car’s vapour system to get flooded with liquid gas, affecting your car’s overall performance by damaging the engine. So, while overfilling your gas tank might seem like a good idea, it’s best if you only give your car the right amount of gas it needs.

These are the myths we found. What other motor myths do you know? Share them with us below!