Experts warn drivers to put brakes on topping off the gas tank

Paul Kurtz
May 11, 2018 - 5:55 pm
Gas Tank
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PHILADELPHIA (KYW Newsradio) -- If you're one of the many motorists who like to top off the tank, experts say stop it! You could cause serious damage.   

The nozzle clocks, but you keep on going. You just want to round out the numbers. Perfect! A little gas spills over. No big deal, right?  Well, maybe if you do it once or twice. But if it's a habit, you're looking for trouble. 

"Excess fuel goes into certain components in your emissions system, which can damage those components," said Rick Santiago, a car expert from AAA Mid-Atlantic. 

Santiago says gas leakage can muck up the evaporation system, sensors, valves and more.

"Even a charcoal canister," Santiago explained, "which could be upwards of $200 to even $800."

So to avoid that costly repair job, he says always turn off your car when you're filling up your gas tank. 

"And when the nozzle clicks that means you're good to go," Santiago said. "I would suggest not going any further than that."