 It's grilling season. Time to go through the checklist to make sure you're set. Let's see. Grill gates clean. Lighter ignition works. Propane tank is full. Eh, maybe. When it comes to grilling, there are no maybes. Time to refill or exchange your propane tank from Olsen Oil Express. You can either exchange your tank or have their staff refill your tank for you. And now that you know your grill tank is ready for cooking, have you checked your camper tanks? I didn't think so. Olsen Oil, Card Express, West Lincoln, Fergus Falls.