Gold and CommoditiesRetail Diesel Prices Surge to Fresh Record High Amid Tight SuppliesSavePrintThe prices for a liter of diesel and various grades of gasoline are seen on a gas pump at a gas station, in Burnaby, B.C., on March 2, 2022. The Canadian Press/Darryl DyckAndrew Moran5/12/2022|Updated: 5/12/2022Retail diesel prices hit another record high of $5.557 per gallon on May 12, according to the American Automobile Association (AAA).The cost of a gallon of diesel, which has risen 1.5 percent over the past week, is 10.5 percent higher than a month ago.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.