# Overfilling the gas tank **URL:** \ **Category:** Power/Fuel\ **Tags:** gas-tanks, gasoline\ **Created:** [December 4, 2008, 7:00pm UTC](https://community.cartalk.com/t/overfilling-the-gas-tank/22948 "2008-12-04T19:00:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Binfry](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@Binfry](https://community.cartalk.com/u/Binfry)\ **Post date:** [December 4, 2008, 7:00pm UTC](https://community.cartalk.com/t/overfilling-the-gas-tank/22948/1 "2008-12-04T19:00:21Z")
I recently filled my tank to the max where I could see the gas at the brim - after all, I hadn’t seen gas that cheap for years - $1.72 a gal. When getting back on the highway, driving 60-65, the car hesitated at times, slight, but you could feel it. After using about 3/4 of a gal, based on how many miles I went, I stopped, unscrewed the gas tank cap, waited a minute, put it back on, and resumed my trip. It hesitated once more, but as I continued on, it didn’t happen again. Does filling your tank to the max cause these kind of problems because of a lack of air in the tank? ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [December 4, 2008, 7:29pm UTC](https://community.cartalk.com/t/overfilling-the-gas-tank/22948/2 "2008-12-04T19:29:37Z")
Overfilling is a very big “no, no.” Don’t do it. You will damage the vapor recovery system and cost yourself a pile of money. ---
**Author:** ![dagosa](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/dagosa/32/9837_2.png) [@dagosa](https://community.cartalk.com/u/dagosa)\ **Post date:** [December 4, 2008, 7:31pm UTC](https://community.cartalk.com/t/overfilling-the-gas-tank/22948/3 "2008-12-04T19:31:49Z")
With an electric fuel pump, fuel injection and a properly operating vent, I doubt it.