For release: 10:00 a.m. (EDT), Tuesday, August 30, 2016 USDL-16-1768 Technical Information: (202) 691-6900  CEXInfo@bls.gov  www.bls.gov/cex Media Contact : (202) 691-5902  PressOffice@bls.gov CONSUMER EXPENDITURES--2015 Average expenditures per consumer unit(1) for 2015 were $55,978, a 4.6 percent increase from 2014 levels, the U.S. Bureau of ...
https://www.bls.gov/news.release/cesan.nr0.htm
In fact, an average driver with $20,000 in ExxonMobil stock would see less than a penny of growth in their investment after spending $1,700 to fill up with gas from ExxonMobil over the course of a year.
http://www.ucsusa.org/news/press_release/gas-money-report-0358.html
There's a lot of assumptions need to be made since you specified only minimum mpg. Assuming: minimum mpg = typical mpg = 20. no of cars =2. mileage driven per car = 10,000 per year. price of gasoline = $2/gal.
https://www.quora.com/How-much-does-the-average-American-spend-on-gasoline-per-year
During the same period, the Consumer Price Index (CPI-U) was virtually unchanged, rising 0.1 percent(2). In 2014, spending increased 4.7 percent. Average pre-tax income per consumer unit increased at a slightly slower pace than expenditures, up 4.1 percent from 2014 to $69,629.
https://www.bls.gov/news.release/cesan.nr0.htm
Assuming: 1  minimum mpg = typical mpg = 20. 2  no of cars =2. 3  mileage driven per car = 10,000 per year.  price of gasoline = $2/gal.
https://www.quora.com/How-much-does-the-average-American-spend-on-gasoline-per-year
“You’re basically paying for a second car every 15 years. The only thing really benefitting from your oil use is oil companies’ bottom line.”. Filling up does not do much to feed money into communities either. In fact, just 81 cents of an average $50 fill-up goes to the local gas station owner. “In the end, gas stations make more money off the bottled water, beef jerky, and other things you buy inside than off the fuel you buy outside,” Goldman added.
http://www.ucsusa.org/news/press_release/gas-money-report-0358.html
So, 2 cars driving 20,000 total miles at 20 mpg would use 1000 gallons at $2 then the direct cost of gasoline would be around $2000 per year.
https://www.quora.com/How-much-does-the-average-American-spend-on-gasoline-per-year
For the average household, transportation costs are almost as much as what’s spent on rent or the direct costs of home ownership: an average of $9,004 annually. Nearly 90% of U.S. households report spending money on gasoline, an average of nearly $3,000 per year. The average cost of gas per month is $250.
https://www.valuepenguin.com/average-household-budget
The typical U.S. household spends 10% of its income on food. The average cost of food per month is $550 (that’s $6,602 each year). Approximately 60% of our food budgets are spent on food eaten at home, and the rest on food consumed when we’re out and about.
https://www.valuepenguin.com/average-household-budget
Within transportation, expenditures on vehicle purchases increased 21.1 percent, while spending on gasoline and motor oil declined 15.3 percent, continuing trends highlighted in the 2014-15 midyear report. Expenditures on cash contributions reversed their 2013 and 2014 declines, increasing by 1.7 percent.
https://www.bls.gov/news.release/cesan.nr0.htm
how much money does the average american spend on gas per year?
The american is spend $3,000 on gas per year. The average American spends on gas $3,000 per year. The average money spent by an American on gas is $3,000 per year.