4 dollars a gallon? You should be so lucky. It's about 6 dollars a gallon in the UK.
1578
2005
Gasoline prices in the United States first surpassed one dollar per gallon in 1979. This increase was driven by the energy crisis, which resulted from geopolitical tensions and reduced oil supply. Prices continued to fluctuate significantly in the following decades, reflecting various economic and geopolitical factors.
98 cents per gallon
2008 was $3.39, In 1969 gasoline was only $0.35 a gallon. By 1976 it had risen to $0.60 per gallon. And by 1980 - 81 we were shocked as gas prices rose above $1.00 for the first time. In only 12 years gasoline had risen a full dollar from $0.35 to $1.35. That is an increase of 286% in 12 years! good-day !
Prices of gasoline vary from time to time and place to place. Some sort of average was $2 per gallon
The price of regular grade gasoline was about 19.9 cents per gallon in 1960.
The average price of gasoline in 2001 was around $1.64 of a gallon
In 2004, the average price of gasoline in the United States was around $2.00 per gallon. Prices varied throughout the year, with some spikes due to factors such as crude oil prices and seasonal demand. By the end of the year, prices had increased, with some areas experiencing prices above $2.50 per gallon.
In 2010, gasoline prices in the United States averaged around $2.80 per gallon. Prices fluctuated throughout the year, influenced by factors such as crude oil prices, seasonal demand, and geopolitical events. By the end of 2010, average prices were closer to $3.00 per gallon.
According to the following website, gas prices appeared to be around $1.95 in 2000: http://flowingdata.com/2007/07/12/gas-prices-over-time-2000-2006/
In 1972, the US national average price of a gallon of regular gasoline was 36 cents. That is equal to about $1.88 per gallon in 2010 dollars.