# Tips on saving at the gas pump. **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [November 15, 2007, 12:17pm UTC](https://forums.speedlife.net/t/tips-on-saving-at-the-gas-pump/38813 "2007-11-15T12:17:41Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Viper966](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/viper966/32/7268_2.png) [@Viper966](https://forums.speedlife.net/u/Viper966)\ **Post date:** [November 15, 2007, 12:21pm UTC](https://forums.speedlife.net/t/tips-on-saving-at-the-gas-pump/38813/2 "2007-11-15T12:21:07Z")
The tips are pretty much worthless, let me put on my Julie math hat the tanks are underground, so the temp variance will be minimal even on a hot day. You can feel this by when you pump the gas the handle will become cooler. In addition this variance is pretty small in quantities under 20 gallons. For a couple thousand gallons it would add up, but in our cars the amount against the loss of convenience would not really make it a factor. These are the numbers that I found as defined by US gov. 231 Cubic inches at 60 degrees = 1 gallon gas 234 cubic inches at 80 degrees = 1 gallon gas I would doubt that gas would change outside that variance in underground tanks, but here is the math at 3 dollars a gallon. (3/231)\*100 = Percentage of difference about 1.3% 20 gallons of gas at 3 dollars = $60 60_1.013 = 60.78 or a potential savings of 78 cents. So assuming you fill up 2 times a week you would save at most .78_52\*2 or $54.78 a year. Wow that is 31,000 miles a year at 15mpg… so lets half that and call it $26 bucks a year assuming the gas is measured at 231 ci/g and is pumped at 80Degrees F every day. which I doubt would happen all year round. So realistic savings would be more like 10 bucks a year at most. Hmm a little larger then I thought but the math works out, yes it is a difference but even in the extreme I do not see it as more then a $10 savings a year if you drive 15k miles a year. --- _[View the full topic](https://forums.speedlife.net/t/tips-on-saving-at-the-gas-pump/38813)._