Filling the tank to the mouth can detonate with an important part of the car

Filling up to the limit of the mouthpiece can cause problems for the part that prevents fuel vapors from stopping in your lungs

A canister is a device that receives and eliminates the vapors that come from the fuel tank to prevent these gases from accumulating in the atmosphere (Photo: Shutterstock | AutoPapo)
By Boris Feldman
Published on 2026-02-24 at 07:00 AM
Updated on 2026-02-25 at 06:07 PM

In the budget for the revision of my car at the dealership, the canister change appeared. But, after all, what is it?

SEE ALSO:

It is a device that receives and eliminates the vapors that come from the fuel tank to prevent these gases from accumulating in the atmosphere, the environment and our lungs. But it is damaged when, instead of the vapor of the fuel, it receives it in a liquid state.

This often happens when the gas station attendant fills the tank to the mouth. Often there is a request from the driver himself who forgets to explain to the gas station attendant that it is to fill up until it is complete, but only until the automatic pump is disarmed.

Boris Feldman

Journalist and engineer with 50 years of experience in the automotive press. Led newspaper and television teams and hosts the AutoPapo program on radio stations across the country.

Boris Feldman
0 Comments
Comments are the sole responsibility of their authors and do not represent the opinion of this site. Comments containing profanity or offensive language will not be published. If you identify anything that violates the terms of use, please report it.
Avatar
Leave one comment