No longer High Street Gas, welcome to Mash Petroleum. Cash payment gets you the cheapest gas in town, and it’s conveniently posted up next to the High street 880 N exit. This place is very busy with many vehicles entering and exiting every which way. BONUSOFFERINGS Bonus offerings include a Taqueria, convenience mart, and car wash. The car wash is not the sleekest, new-fangliest, but it’s cheap — $ 5.75 gets you a quickie, $ 7.75 gets the slightly more water-wasting deluxe. HOLYFRIJOLES I haven’t yet tried the Taqueria, but it’s possible I may be able to get gas at a good price from there as well.