RNJ Auto Inc is a repair shop in Rapid City, SD, providing engine, transmission, drivetrain, and general maintenance services. Reviews consistently describe it as a great place with awesome people and great service. Customers highlight the shop's ability to diagnose and fix complex problems that other mechanics could not figure out, including strange issues, electrical problems, and difficult no-start situations. The mechanic is commended for being really great, straightforward, and upfront, ensuring customers understand the work needed. A major point of praise is the fair and honest pricing. The shop does not overcharge, claim extra hours, or try to convince customers of unnecessary repairs. Work is completed promptly and for a great price, even during emergency breakdowns when service is urgently needed. Customers report being treated right and fairly over many years, with no misdiagnoses. The overall sentiment is one of high recommendation, with multiple reviewers stating they will definitely return and that others should not waste time or money elsewhere but call RNJ Auto Inc for whatever repair is needed.
My son was traveling across country and had a wheel bearing go out. Got him in promptly. More than fair price. Super friendly. Cannot thank them enuf. Noone wants their child stranded and these place was a life saver
June 2025
Rick and his crew are the best around! On a cross country road trip in our RV we ran into transmission issues. Rick worked hard to get us back on the road asap - would absolutely recommend!
March 2025
Great service and amazing mechanics. Say hello to Rick. Trustworthy business. Thank you, RNJ Auto Inc.
