According to Fueleconomy.gov, a gallon of gasoline weighs about 6.3 pounds, therefore 15 gallons of gasoline weighs around 94.5 pounds.
On Monday, June 30, the national average retail gasoline price was $3.70 per gallon. Although this is the highest average heading into the Fourth of July holiday since 2008, gasoline prices in 2014 have remained well below the spring peaks reached in each of the previous three years. Although prices are currently 20 cents per gallon higher than last year at this time, prices this year did not peak as high as in recent years because of relatively stable crude oil prices in 2014. Read more at US Energy Information Administration.
Find the cheapest gasoline prices in your area at Fuel Economy - Local Prices.
Find out how you can save money on gasoline by following Fuel Economy - Gas Mileage Tips.