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Our Top Services

A/C Repair

Engine Repair


Oil Changes

We are a NAPA Gold Certified AutoCare Center because we bring the excellence of a national brand together with the personalized service of our locally owned repair center.

Being a NAPA Gold Certified AutoCare Center means we’re part of the top shops in the country that are pushing the auto repair industry forward. To be a part of this program, we use modern automotive repair technology utilized by the highest level or ASE (Automotive Service Excellence) Certified staff. Outside of the garage, we’re taking strides to be a modern business that uses digital tools for customer satisfaction. We have proven a consistently outstanding customer experience – we maintain a 4-star minimum rating on digital platforms.

Selected out of 242 NAPA AutoCare Centers in the Billings District, encompassing 4 states.

Our business takes quality and customer service seriously. As a NAPA AutoCare Center, we follow a strict Code of Ethics so customers will know up front what to expect.


Octane Garage, the newest locally owned Service Center in Gillette, with the latest technology, ASE Master Certified Techs, and top of the line facility. is
raising the bar for customer service. Having lived in Gillette for over 20 years, the owner chose a team of professionals to offer what this area is lacking.

A one-stop-shop with real, genuine customer service. Not only is Octane Garage a regionally recognized NAPA AutoCare Center, but its techs, managers, and working team have been hand selected to set a new standard of higher expectations in Gillette. Stop by and see us, Get the Fix, and be a part of what Auto Service Care should be.


This Consumer Warranty covers ALL parts and labor on qualified repairs and services. Automatically extends to 36-Month/36.000-Mile Coverage when consumers use their NAPA EasyPay Consumer Financing option.

Extended warranties available & serviced here!


  • Perform high-quality diagnostic and repair services at a fair price, using quality NAPA parts.
  • Employ ASE-certified technicians in all areas of work performed.
  • Be dedicated to customer satisfaction.
  • Exercise reasonable care for the customer’s property while it is in the shop’s possession.
  • Provide a system for fair settlement of customer complaints, should they occur.
  • Maintain the highest standards of the automotive service profession.

Our mechanics are dedicated to maintaining the highest standards and professionalism in the industry.



Octane Garage is honored to serve the community of Gillette, WY with car repair services. We work hard to be the best auto shop in Gillette, Wyoming and our automotive professionals always strive to provide our customers with honest, efficient and friendly service. We also carry top brands that suit your needs.