2 Portland Metro Area Locations


Monday-Friday: 8:00AM - 5:30PM

Monday-Friday: 8:00AM - 5:30PM
Schedule Your Appointment (503) 235-1485

Our Services

Diagnose & Repair Check Engine Lights


Some Of The Automotive Maintenance, Repairs & Services We Offer.


The combustion engine is a much-underappreciated piece of equipment. All it takes is some air, a little gasoline, and a small spark, and your engine will carry you wherever you need to go. The engine is the most important part of a vehicle, but many people still don’t have a clue how it works or what causes it to stop working. At K&M Auto Service, we have extensive experience working with damaged and dysfunctional engines. We can quickly diagnose engine problems and make repairs accordingly.

Your engine is a complex piece of machinery. A lot of moving parts go into making an engine function properly, and when those parts break down, your engine suffers. As your engine gets older, there are a lot of things that can go wrong. It could be something as simple as your spark plug wearing down, or it could be as serious as an overheated engine or a broken timing belt. Whatever the case, we have the experience and training to take care of it.

At K&M Auto Service, we will do everything in our power to ensure that your engine is functioning optimally and won’t break down on you unexpectedly. So if your check engine light comes on if you hear unfamiliar noises coming from under the hood, or if you start smelling foul odors emitting from your engine, take your vehicle into K&M Auto Service in Portland and we will determine what the problem is.

Finding a trustworthy auto mechanic that you know you can depend on can be tough these days. K&M Auto Service is a local, family-owned K&M Auto Service that truly cares about delivering exceptional service at a reasonable price. Our team of highly trained, certified mechanics is very knowledgeable about the inner workings of all vehicles, including imports and foreign models. If there is a problem with your vehicle, we will find it and repair it. Here at K&M Auto Service, we are adept at repairing engine problems. If you are in need of the K&M Auto Service, we can help you get back on the road as soon as possible.

While you’re there, let us perform a Touch® Courtesy Check, which includes a visual check of the following items:

  • Engine air filter
  • Brake fluid
  • Power steering fluid
  • Automatic transmission fluid
  • Coolant/antifreeze
  • We’ll also walk you through your vehicle manufacturer’s recommendations for replacing these vital fluids and filters.

Oil change near me? The next time you ask this question, just look for your neighborhood Car Repair Service.

For over 60 years, Car Repair Service has been helping drivers across North America maintain their vehicles. With ASE-certified mechanics in all of our stores, we can take care of all of your auto repair and maintenance needs. From oil changes, filter replacements, and fluid flushes to brakes and brake repair, shocks and struts, muffler repair, tires, and wheel alignment, we’ve got you covered.

Use the quick links in the gold bar to book an appointment at your Car Repair Service store today!

Oil Change – More than You Wanted to Know

Engine Oil
Most cars on the road today use multi-grade oil — one that can work efficiently in cold and hot weather. A multi-grade oil is rated by two numbers, such as 5W-30.

About the oil classification system.
Each engine oil comes with a classification indicating its viscosity, which is its friction or resistance to flow. In a multi-grade oil, the first number indicates how the oil will flow when it is cold. The lower the number, the lighter the oil and the better it will perform at lower temperatures. The second number indicates the thickness of that same oil at high temperatures. For example, a 5W-30 oil will flow as a 5-weight oil at zero degrees Fahrenheit and as a 30-weight oil at 210 degrees Fahrenheit

Why viscosity is a concern.
During cold starting, only a small amount of oil is present in the upper parts of engines. To lessen the friction when upper engine parts, such as the valve train, pistons, overhead cam and cam bearings, scrub against each other, a lower viscosity allows the oil to reach the components more quickly.

Why 5W-30 and 5w-20 oils are so popular.
Many vehicles today leave the factory with 5W-30 or 5w-20 engine oil. Vehicle manufacturers recommend them because they are lighter oils that perform well in a range of temperatures and help improve gas mileage.

Synthetic Oils
Not all motor engine oils are 100% petroleum. Synthetic oils, which are primarily chemically compounded lubricants, are also available. They can provide:

  • Higher viscosity stability over a wider temperature range
  • Reduced oil thickening
  • Reduced wear and increased load-carrying ability.

Which oil is right for your car?
The simplest and safest way to find out is to check your owner’s manual…or talk to your Midas mechanic.

Oil Filters
Oil filters are designed to trap foreign particles suspended in the oil and prevent them from getting to the engine bearings and other parts.

Your vehicle relies on a variety of fluids to operate its brake, steering, transmission, engine cooling and other systems. When these fluids become degraded or are at incorrect levels, damage to other components may occur…so always follow the manufacturer-recommended service schedule.

Automatic Transmission Fluid
This is typically an oil-based fluid used in a transmission that lubricates and cools the transmission and provides hydraulic pressure to shift gears automatically.

Brake Fluid
This is the hydraulic fluid used to transmit pressure through the brake lines in a brake system providing stopping power and protecting hydraulic brake components from internal corrosion.

This is the mixture of water and antifreeze used in an engine cooling system to dissipate heat and maintain the engine’s temperature throughout its operating range.

Starting & Charging
The battery starts your car, powers on-board computers and supplies emergency power needs. A weakened battery causes stress on alternators and starters, especially during extreme temperatures. Let Midas test and inspect your battery regularly.

Air Filters
Clean air filters can increase engine performance, boost fuel mileage and reduce engine wear. Cabin air filters can minimize airborne contaminants in the passenger compartment and improve heating/cooling efficiency.

Touch® Courtesy Check
The Midas Touch® Courtesy Check is fast, efficient and covers many items on your vehicle’s preventive maintenance schedule. We’ll conduct a visual check, looking inside, outside, under the hood and under the vehicle, then provide you with a written report.