Subaru WRX STI Maintenance Schedule [A Complete Guide]

If you want your Subaru WRX STI to keep running smoothly around the years of ownership, you should know the subaru recommended maintenance schedule and maintain your car regularly. You should change the oil, oil filter, and other parts of your car at the right time. 

Indeed, your Subaru will perform at its peak performance and keep you safe on the road if you take care of it. And of course, you want to maintain your car for secure and smooth riding. 

But the heck is- you don’t know which is the right oil for Subaru WRX, when is the right time to change the oil, replace spark plugs, and the brake fluids. That’s why we bring this complete rundown of your Subaru WRX STI Maintenance Schedule. 

It will help you to take care of your everyday driving friend (WRX STI) when required. So, stay in tune with us till the end of this guide. 

Subaru WRX STI Maintenance Schedule

Check out the below maintenance schedule for your Subaru WRX and WRX STI models 2012-2018 to see when is the right time for an oil change, tune-up, battery check, and so on. All of these help you to run & operate your Subaru WRX STI smoothly. 

10,000km or 6 Months Maintenance

Once you hit 10000 km or the age of driving your Subaru reaches six months, get ready for the following maintenance workflow. 

  • Replace your existing oil filter with a new one and also change the engine oil. 
  • Don’t forget to check out tire condition and adjust the pressure of your tire. 
  • Examine and fine-tune all fluid levels 
  • Ensure every light, washer, and wipere is running well
  • Scrutinize the drive belt condition and adjust it if required
  • Inspect axle boot condition, steering components, brake system, suspension conditions, and clutch system. 
  • Change the cabin air filter

Time require for inspection: 0.5 Hours

20,000km or 12 Months Maintenance

Maintain the below maintenance schedule at 20000 kilometers. 

  • Rotate tires and take a look for wear & tear
  • Inspect the condition of the front and rear brakes, repair them, and replace those parts if needed.
  • Check whether the hoses and the clamps are in good shape or not
  • Wheel alignment
  • Follow the maintenance workflows we mentioned in the ‘10000 or 6 month’ section. 

Time require for inspection: 2.5 Hours

30,000km or 18 Months Maintenance

Do the following things when you complete driving your car 30000 miles. 

  • Check the condition of the automatic transaxle fluid and replace it if necessary
  • Examine the cooling system, fuel lines, front & rear axles
  • Look over the manual transaxle fluid condition, V-belt
  • Follow the maintenance workflows we mentioned in the ‘10000 or 6 month’ section.

Time require for inspection: 0.5 Hours

40,000km or 24 Months Maintenance

When you reach the club of driving your car for 24 months or hit the 40000 km milestone, follow the below maintenance schedule. 

  • Change your engine oil and get a new oil filter
  • Take a loot at the axle boot condition
  • Look over every steering and suspension part
  • Inspect and replace engine and cabin air filters if necessary
  • Scrutinize every fluid level
  • Don’t forget to take a look at the front and rear brakes

Time require for inspection: 2.5 Hours or more

50,000km or 30 Months Maintenance

After reaching 50000 km of driving your WRX STI, make sure the following parts of your car are in good condition. If required, don’t hesitate to replace those parts. 

  • Change the oil and buy a new oil filter
  • Inspect and adjust all the fluid levels
  • Look over the operation of all lights, washers, and wipers
  • Take a look at the tire conditions and change their pressure if required
  • Lube all hinges, locks, and latches
  • See whether the drive belt tension in its place or not- if necessary adjust it

Time require for inspection: 0.5 Hours or more

60,000km or 36 Months Maintenance

Your Subaru WRX STI needs special care when you hit 60000 km of driving. Ensure you maintain the below maintenance schedule at 60000 km.

  • Service the battery and test it
  • Check out engine and cabin air filter
  • Replace your existing spark plugs with new one
  • Replace brake fluid
  • Change the old transmission and differential fluids
  • Wheel alignment
  • Take a look under your car body for damage
  • Service fuel injectors
  • Take a look at every emission-related hose
  • Examine PCV valve- if required replace it
  • Follow the maintenance workflows we mentioned in the ‘10000 or 6 month’ section.
  • Road Test

Time require for inspection: 4 Hours or more

70,000km or 42 Months Maintenance

The car maintenance workflow we mentioned in the ‘10,000 or 6 months’ is applicable once you completed 70000 km of driving your car. Oil change and replacement of the filter, checking the tire conditions, and service battery are some examples of car maintenance workflows you must do in this stage. 

80,000km or 48 Months Maintenance

Follow the same maintenance workflows we mentioned in the ‘20,000 or 12 months’ section. Rotating tires, inspection of cabin and engine air filters, and wheel alignment are some examples of car maintenance workflows you should perform. 

90,000km or 54 Months Maintenance

Car maintenance workflows we included in the ‘10000 or 6 months’ section will be applicable when you hit 90,000 km of driving your car. 

100,000km or 60 Months Maintenance

At this stage of driving your WRX STI, make sure you perform the following car maintenance workflows. 

  • Change the oil and replace the oil filter
  • Rotate tires and check for wear & tear
  • Check the fluid level
  • Examine, remove, and replace the front and rear brakes
  • Full battery service and test
  • Replace the old brake fluid with new one
  • Get new spark plugs and change the old plugs with new one
  • Replace the existing transmission and differentials fluid
  • Wheel alignment
  • Road Test

Time require for inspection: 4.3-5.5 hours

At the stage of 110k, 130k, 150k, 170k, 190k, 210k kilometers of driving your car, apply all the maintenance workflows we mentioned in the ‘10,000 or 6 months’ section. 

On the other hand, follow all the maintenance steps we mentioned in the ‘20,000 or 12 months’ section when you hit 140k and 160k kilometers of driving range. 

When you reach 120k, 180k, and 220k of car driving range, perform the car maintenance workflow we mentioned in the ‘60,000 or 36 months’ section. 

Finally, when you hit the driving range of 200k kilometers, perform the maintenance workflows we mentioned in the ‘ 100000 or 60 months’ section. 

Here’s Why Subaru WRX STI Scheduled Maintenance Matters

Do you want to reach the milestone of driving your Subaru WRX 200,000 miles? Then, take care of your driving friend as you take care of your children. Maintaining your car at the right time will help you to reach the driving milestone with your Subaru. 

The heck is- it will be a bit overwhelming for you if you are not sure when is the right time to go to a mechanic. Fortunately, this guide on the Subaru maintenance schedule will help you when you should go to the car mechanic. 

Maintaining the car maintenance schedule will prolong the overall lifespan of your WRX STI. Plus, it ensures you will be safe on the road. Most importantly, it will relieve you from the pressure of dealing with the common issues of WRX STI. 

FAQs

Is it expensive to maintain a WRX STI?

The average cost of maintaining a WRX STI is $327. However, you should spend around $80-$6626 if you want to repair and maintain your Subaru WRX STI.

What is the Subaru maintenance schedule?

After every six months, you should perform the car maintenance workflow for your Subaru. 

How much does it cost to maintain a Subaru STI?

It will cost you around $758 per year to maintain your Subaru STI.

When should a timing belt be replaced on an STI?

For trouble-free operation, you should replace the timing belt every 100,000 miles if you own the WRX or the STI. 

How long do timing belts last Subaru?

Timing belts of your Subaru will last about 100000 miles.

Does STI have a timing belt?

Before the models of 2013, every engine of Subaru was equipped with timing chains. However, the latest car models of Subaru have timing belts. 

Which Subaru engines to avoid?

Try to avoid the Subaru 2.5-L Turbo Four-Cylinder engine. 

Do Subaru timing chains need to be replaced?

No, you don’t need to replace the Subaru timing chains.

What year did Subaru fix the head gasket problem?

After 2013, Subaru fixed the head gasket problem. 

Conclusion

Throughout this guide on Subaru WRX STI Maintenance Schedule, we discussed when is the right time to maintain your car. Also, we mentioned what car parts you need to inspect, repair, and replace every maintenance session.  

If you have a hand of a car mechanic, you can do the maintaining workflow by following the guideline we provided. 

On the other hand, if you don’t have experience related to car fixing, go to a certified mechanic to do the task for you. 

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