30/60/90/120 Mile Services - Everything You Need To Know

30/60/90/120 Mile Services - Everything You Need To Know | Autoworks Of Issaquah

Routine car maintenance is essential for prolonging the lifespan of your vehicle and ensuring it operates safely and efficiently. Among the most critical services are the 30, 60, 90, and 120-mile services. These intervals represent key milestones in your vehicle’s life where various components need checking, replacing, or updating.

  30K-Mile Service

The 30-mile service is your car’s first major check-up. At this stage, the focus is on inspecting the vehicle’s fundamental systems, including the engine, transmission, brakes, and all fluids. It's a crucial time to identify any issues that may have arisen since you purchased the car.

Key Services Include:

  • Oil and filter change
  • Fluid level checks and adjustments
  • Tire pressure and tread check
  • Brake inspection
  • Inspection of hoses and belts

  60K-Mile Service

The 60-mile service builds upon the initial 30-mile service. This is the point where more thorough checks are conducted, and some parts may need replacement due to wear and tear.

Key Services Include:

  • Replacement of air and fuel filters
  • Battery performance check
  • Thorough inspection of the braking system
  • Checking and replacing spark plugs if needed
  • Transmission fluid check and possible replacement

  90K-Mile Service

The 90-mile service is often the most comprehensive. It's an opportunity to replace parts that have a shorter lifespan and address issues that are developing as the car ages.

Key Services Include:

  • Timing belt replacement
  • Coolant or antifreeze replacement
  • Checking safety features like the airbag system
  • Exhaust system evaluation
  • Steering and suspension check

  120K-Mile Service

This service is similar to the 90-mile one but with an emphasis on preparing the car for the next tens of thousands of miles.

Key Services Include:

  • More in-depth engine inspection
  • Replacing worn belts and hoses
  • Brake pad and rotor check
  • Inspecting and potentially replacing shock absorbers
  • Wheel alignment

  Frequently Asked Questions


Why are these specific mileage services important?

These services are critical because they are designed to check and replace parts of your vehicle that commonly wear out or need adjustment after certain mileage intervals.

Can I skip one of these services?

Skipping these services can lead to bigger, more expensive problems down the line. It's essential for the health and longevity of your car to adhere to these maintenance schedules.

What happens if I don’t replace the timing belt at 90 miles?

The timing belt is crucial for your engine's operation. If it breaks, it can cause severe engine damage. Replacing it at the recommended interval is vital.

Are these services different for electric or hybrid vehicles?

Electric and hybrid vehicles have different maintenance needs. While some services, like fluid checks, may not apply, other components specific to these vehicles will need attention.

Can I perform any of these services myself?

While some tasks, like oil changes, can be DIY, many of these services require professional tools and expertise. It’s generally recommended to seek a qualified mechanic for these services.


Is it time for your car to go to the shop? Call Autoworks Of Issaquah, and our team will be happy to help!

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