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Welcome to Ray’s OK Service, conveniently located in Greenfield, Wisconsin on Loomis Road at I-894. We specialize in the maintenance and repair of foreign and domestic vehicles. Ray’s OK Service, originally opened in 1972 by Ray Kurian Sr.  Sons, Ray and Dave worked with their father building a business that prides itself on skilled automotive repair for a fair, honest price. Co-owners since 1991, Ray and Dave, along with their team of professional technicians (John, Paul, and Rick) continue to take great pride providing your automotive needs.


Customer Care

“Our customers are always first.” Technician to customer communication is a priority. You will always speak directly to the tech servicing your car. Our established automotive repair business has earned the longstanding respect from the people we serve. Today we serve loyal second and third generation customers.

Up-to-date Technology

We invest in up-to-date diagnostic equipment and tools. High-speed Internet access provides up to the minute information on all makes and models, as well as the latest OE technical information. Ongoing training enables our team with the ability to repair your car properly.

Reliable Technicians

Meet “Our Team of Professionals”:  Ray Jr. and Dave (co-owners), John, Paul and Rick (technicians). Our experienced technicians will provide you with the finest automotive care. Today’s high tech vehicles require knowledgeable and skilled technicians. Combined, we have over 70 years of experience servicing and repairing vehicles. Our shop techs have what it takes to repair your car right the first time. You will be kept informed, having direct contact with “your tech”. From scheduled maintenance to major repairs, your vehicle will receive exceptional service.





Why Choose Us?

      • Domestic and Import Vehicles
      • Caring Customer Service and Communication
      • Clean Facility with Comfortable Waiting Room
      • Convenient Location near I-894 & Loomis Rd.
      • Quality Work at Fair Competitive Prices
      • Seventy-Plus Years of Experience
      • Same Day Repair Service
      • We use only High-Quality Parts
      • Available 24 Hour Towing (through Ray’s Towing – (414) 481-4355)
      • Outstanding Reputation in the Community

Our Credibility


Better Business Bureau

Customer Lobby Reviews


See our reviews on Angie's List