Monday, March 14, 2011

A Savvy Tip - Secret Savings on Gas!

My FIL sent me an email with some awesome tips on saving money while pumping gas! I haven't tried these out but they sound very logical - who knew!!

  • Only buy or fill up your car or truck in the early morning when the ground temperature is still cold. Service stations have their storage tanks buried below ground. The colder the ground the more dense the gasoline, when it gets warmer gasoline expands, so buying in the afternoon or in the evening....your gallon is not exactly a gallon.
  • When you're filling up do not squeeze the trigger of the nozzle to a fast mode If you look you will see that the trigger has three (3) stages: low, middle, and high. You should be pumping on low mode, thereby minimizing the vapors that are created while you are pumping. All hoses at the pump have a vapor return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapor. Those vapors are being sucked up and back into the underground storage tank so you're getting less worth for your money.
  • One of the most important tips is to fill up when your gas tank is HALF FULL. The reason for this is the more gas you have in your tank the less air occupying its empty space. Gasoline evaporates faster than you imagine. Gasoline storage tanks have an internal floating roof. This roof serves as zero clearance between the gas and the atmosphere, so it minimizes the evaporation.
  • Another reminder, if there is a gasoline truck pumping into the storage tanks when you stop to buy gas, DO NOT fill up; most likely the gasoline is being stirred up as the gas is being delivered, and you might pick up some of the dirt that normally settles on the bottom.
WOW - a few simple changes could add up to big savings when  pumping gas!


  1. You might want to check on before you post emails that are forwarded to you. This email is not completely plausible.

  2. Actually savings are quite plausible from what I read. The savings aren't huge, but there are potential savings - even snopes agrees! Do you know what I could buy with just $31 savings a year :-)

  3. I think that was a great post and I will be trying all or some of the suggestions! Thanks for all you do!


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