Popular apps like GasBuddy, Waze and Google Maps are free and show gas prices in real-time via a ... found that gas is the cheapest in most states on Monday, while Friday and Saturday are the ...

Uncertainty around the impact of Donald Trump's policies has led to a small decline in gas prices over the past week, data show.

Gas prices fell for the fourth straight week on Monday and are likely to continue sliding below $3 per gallon, according to experts.