It is important to save money on gas, and my dad tracks it to make sure he gets it at the best price. I recently found the following tip on the internet:
Only get gas earlier in the morning. Gas is stored underground and in
the early AM it is at its most dense and will give you more gas for your
While it’s true that gasoline may be more dense during the coldest time
of the day – very often the early morning – colder temperatures won't give you enough extra volume of gasoline to really make a major difference. The real reason why you should buy gasoline in the morning is
because often between 8 a.m. and 10 a.m., gas station managers and
owners get around to checking out their competition’s prices. In times
of rising gas prices, if competing gas stations have raised their prices it tends to happen between 10 a.m. and noon.
But, the biggest thing is not waiting until your gas gauge drops down to "E." (Teri and Jason are bad about this.) It isn't good for your car's fuel injection system. It is better to fill
up when the gauge is at a quarter, growing up I was told to do it between half and a quarter. Thinking about a refill
at that point gives you some time to start looking at gas prices and shop around for the best place.