Welk's Citgo is a family owned and operated convenience store and car wash is located in Greenfield, on the corner of south 84th st and west Layton ave. Established in 1953, the second generation company has been servicing the community since 1982. our aim is to provide  a fast and friendly customer experience every time a customer visits our store. Welk's Automotive Service, located right next door, provides quality auto service and repair at fair and reasonable prices. We are experts in auto diagnostics and emission repair, and offer a complete line of services from oil changes and tire repairs, brake service, wheel alignments. We also sell most major brands of tires