Why Topping Off Your Gas Tank is a No-No 🚗⛽
Hey y’all, let’s talk about something we’ve all probably done: topping off the gas tank. You know, when the pump clicks, but you squeeze in just a little more to round it up to the next dollar. We get it – it’s satisfying! But here’s the deal: that little extra could be doing more harm than good. Let’s break it down for you, bayou style.

1. Overflow Can Mess Up Your Car’s Systems
Modern cars are pretty smart, and part of that smarts is a system called the evaporative emissions system (EVAP). Its job? To keep harmful gas vapors from escaping into the air. But when you top off, that extra gas can overflow into the EVAP system, damaging a key part called the fuel carbon filter.
When gas soaks into this filter, it can clog it up, and here’s where it gets annoying: you might find yourself fighting with the pump at the gas station because the tank keeps clicking off every few seconds, even when it’s far from full. It’s like trying to fill a crawfish pot with a tiny ladle – frustrating and time-consuming! Fixing this issue can cost you a pretty penny, too, so it’s best to avoid it altogether.
2. Gasoline Spills Aren’t Good for Your Wallet (or the Earth)
We all know how precious that gas is, especially with these prices. When you overfill, the excess can leak out onto the ground, wasting your hard-earned money. Not to mention, spilled gas isn’t great for our environment. Let’s keep our bayous and crawfish happy, yeah?
3. Pressure Build-Up Ain’t Your Friend
Topping off can create extra pressure in your tank, which might lead to fuel system issues down the road. Think of it like adding too much roux to your gumbo – a little too much can throw the whole thing off.
4. You’re Not Really Getting More Gas
Here’s the kicker: when the pump clicks, that means your tank is full. Anything you squeeze in after that is likely getting sucked back into the gas station’s vapor recovery system. So, all that extra effort? It’s probably just going right back to them – not your car.
What’s the Better Move?
When the pump clicks, just let it be. Trust us, your car – and your wallet – will thank you. And if you’re ever unsure about how your car’s systems are holding up (or if that pump keeps clicking too soon), bring it on by Rock’s Tire & Auto. We’ll take good care of it, like family.
So, next time you’re filling up, resist the urge to top off and leave the “lagniappe” for your jambalaya, not your gas tank. 😉
Stay safe on the roads, y’all!
Rock’s Tire & Auto
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