Carrying extra weight is a certain way to kill your car’s fuel economy. Doing so will also put additional strain on wear-and-tear parts of your car such as the tyres, brakes and suspension bushes. Remove all unnecessary items you don’t need in the car. Start with the car door pockets and glove-box, then look under the seats for any stray items.

Please follow the link below to read more:
https://www.spotdem.com/2019/10/15/why-you-need-to-keep-your-vehicles-weight-down-2/