Costco shoppers love the chain's cheap gas. We did the math to see how fast savings add up in 13 US cities.

Costco sells gas for around $0.20 per gallon less than what typical fuel stations charge — savings that can offset the $65 ...

Here's where Costco gas savings can pay for your membership the fastest

Costco sells gas for around $0.20 per gallon less than typical fuel stations charge — savings that can offset the $65 annual ...