A pump and the lines that carry the DEF to the exhaust system ... Availability: Although it's widely available at gas stations and truck stops, there may be a time when you find yourself on ...

Ever approach a Costco gas station, see the long lines and glumly pull away? The big-box club in recent weeks finally did what members have sought for years: It expanded hours to pump gas.

Ever approach a Costco gas station, see the long lines and glumly pull away? The big-box club in recent weeks finally did what members have sought for years: It expanded hours to pump gas. Pumps are ...