We are more than happy to perform any transmission system repairs or maintenance on your automobile. Our certified mechanics have over 70 years of combined experience and are well-equipped to work on any type of vehicle.

Why Is Transmission Maintenance Important?

Regular maintenance, of course, helps your vehicle run longer, stronger, and safer. This also applies to your car’s transmission. The transmission makes sure the right amount of power is going to your wheels in order to drive. If you happen to drive manual/stick-shift, you may understand the concept better than those who are only automatic transmission drivers.

Have you ever tried to bike up a hill in high gear, and even your own body weight couldn’t turn the pedals? Or maybe you’ve biked down a hill in low gear, and no matter how fast you pedal, you still didn’t go any faster? That’s because you were not in the correct gear. Cars work in almost the same way, they just don’t have a metal chain like a bicycle. Automatic cars shift gears on their own, while stick shift cars require the driver to shift the gears themselves.

What Does Transmission Fluid Do?

Transmission fluid cools and lubricates the internal parts of your vehicle’s transmission, ensuring it sends the right amount of power to operate. As a vehicle ages, contaminants that may cause damage to critical components can enter the transmission. Our experts mechanics provide a thorough transmission fluid exchange designed to clean the system and ensure harmful contaminants are removed.

Our transmission maintenance includes:

  • Overall inspection of your car’s transmission

  • Repair of replacement of any damaged or broken parts

  • Transmission flush and fluid replacement

  • Any other transmission work as needed

Contact Ray’s OK Service to book your next heating and air conditioning repair appointment!

When you keep your car in top running condition, you will save time and money in the long run. A well-maintained vehicle provides safe travel for you and your family, giving you security and peace of mind.


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. and sons.  As a family, they built a thriving auto repair business.  A company that prides itself on skilled automotive repair services, up to date technology, fair honest pricing, and cordial customer service. Now serving 3rd Generation Customers!!

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