I don't see any need to 'track' costco gas prices in my area, because at least in western washington state, my local costco is always the least expensive option for regular unleaded. My choice of whether I go there to fill up is simply if it happens to be on the way to/from somewhere else I'm going or is not an unreasonable detour. Or I need to do some other costco shopping. Or it's late at night and the costco is closed, so I have to go to a 24x7 place like an ARCO.
The gas price savings easily pays for the annnual standard costco membership.
I've never had a problem with lineups at busy ones like the Everett, WA costco. Also keep in mind the costco gas hoses are designed to reach the far side of the car, you don't have to pull up to the side where your gas tank faces. Grab the hose with one hand and the nozzle with the other and pull it over.
Depends on the location. It’s fine everywhere I’ve been. The locations near bigger cities have more pumps and the ones in smaller cities have fewer to scale with demand.
I get gas at a very busy Costco regularly and even though the lines look bad they're actually very efficient, because Costco 1) has longer gas hoses allowing you to reach both sides of the car 2) has a middle lane allowing cars to enter / exit the gas pump even when there's someone in front of them. So even with ~50 cars waiting the average wait time is only like 5 minutes
The gas price savings easily pays for the annnual standard costco membership.