Hey guys, I've been searching all over the internet to find a comprehensive guideline on what services are recommended vs necessary. There are bits and pieces of info here and there, so I thought I would make one here to see if we can build one up for future use.

We all know what the manufacturer recommendation service schedule is. What is useful to know is which one of them can be skipped, for how long, and how different conditions apply (eg driving types, frequent stops, driving in cold/hot/snowy weather). Also, for those who like to do it themselves, how difficult it is to DIY.

So if anyone can help fill out the following list (based on their well-research and knowledgeable opinion), that would be great. I've filled out what I got from my dealership.


In Cabin Micro Filter:
- What it does:
- Recommended service: every 24K
- Necessary service:
- DIY Difficulty:

Engine Hot Oil Flush:
- What it does:
- Recommended service:
- Necessary service:
- DIY Difficulty:

Power Steering Fluid Flush:
- What it does:
- Recommended service:
- Necessary service:
- DIY Difficulty:

Fuel Injector service:
- What it does:
- Recommended service:
- Necessary service:
- DIY Difficulty:

Automatic Transmission Fluid Flush:
- What it does:
- Recommended service:
- Necessary service:
- DIY Difficulty:

A/C System Service:
- What it does:
- Recommended service: every 42K
- Necessary service:
- DIY Difficulty:

Collant Flush:
- What it does:
- Recommended service: every 2 years
- Necessary service: every 5 years or 100K (?)
- DIY Difficulty:

Brake Fluid Flush:
- What it does:
- Recommended service: every 2 years
- Necessary service:
- DIY Difficulty:

Throttle Body service:
- What it does:
- Recommended service: every 70K
- Necessary service:
- DIY Difficulty: