A gallon of regular unleaded gasoline in San Diego retails for an average price of $4.61 a gallon. A few miles south, in Tijuana, it's about $2.54 — even less if you pay in pesos, the Associated Press reports.
More and more people appear to be taking advantage of the lower price. The lower prices mean a U.S. motorist could save almost $54 filling up a two-year-old Ford F150 pickup with a 26-gallon fuel tank in Mexico.
The differential in diesel is even greater, selling at $5.04 a gallon in San Diego County and $2.20 in Tijuana.
According to the AP, gas is cheaper in Mexico because of a government subsidy intended to keep inflationary forces in check.
Still, international gas-buying trips don't make sense for everyone. The wait getting back into the U.S. at the border in Tijuanafrequently takes longer than two hours and cars can burn about a gallon of gas for each hour they idle.
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