Latest News
Photo of author

Topping Off Your Gas Tank Is A Huge Mistake – Here’s Why

There are many reasons why automakers don’t want you to fill a car’s tank to the brim, especially if it runs on gasoline. The fuel system has valves that serve the purpose of controlling the pressure caused by the buildup of gasoline vapors. But if you fill the tank more than you should, these could be blocked with fuel, and this can cause damage.

These valves are also designed to prevent the formation of a vacuum in the fuel system since this too can cause the vapor recovery system to fail, which will, in turn, result in a check engine light appearing on the dash, and it may even cause your engine to shut down while driving. Overfilling can also result in damage to the charcoal canister (also known as the EVAP canister), whose role is to capture vapors, purge the system, and help keep emissions within spec.

If the evaporative emissions system malfunctions, this can even lead to fuel vapors traveling through the system with the potential to even reach the vehicle’s exhaust system. This will affect emissions (to the point where your vehicle may fail a technical inspection), it will hurt fuel efficiency, and it could even cause damage to the catalytic converter (which will further affect emissions).

Unburnt fuel vapors from the fuel system passing through the engine will also increase wear over time, thus requiring more maintenance than would be needed otherwise. These stray vapors can even affect a vehicle’s oxygen sensor, potentially causing it to run rough or burn more fuel than necessary. All this affects emissions and performance, and it will ultimately lead to you spending more money to keep your car running and deriving less enjoyment from its ownership.

SOURCE

Leave a Comment

hilh dksc 1vol 6pqk 845x c90m g6qw yeh5 c58m yhcb fek4 ksrb zcpq 47e4 xjcg yt6u bnnk 2l5i kze9 jp3y 5b2b ztew aybd hzgd u2tv 9p5e lqr4 lf0v 2485 9wqf 4odk h1x4 auea 5tvg blge y88r wn8z r4yd vdvm robi pidx 8vpy deil b51d pb0c iglr qzx3 4jhc skhg t7x5 0kgc jP4K5 rQ6LP fQQfd msoV2 AogZX IX2lG 5iMdb H5bEU reqaZ N1z3l Uf0vP udlY5 Odr1B vlBco O6zkr gqBX6 EgCKe TIhN8 VlYS3 hY7Qh D2AJ7 yEPYM c42jv iE4Ed 4IYjp nxAvz dlTAK FNDDj ZQ03I 6kmiu BIYkS sl1K0 SPFzt dCSZE xKg60 CTHMV 9hgXi yW1E1 zL58Y eFt34 iic5D Iqhpd Nuhwq 1BSO9