Carbon build-up is an issue on direct injection engines. There is a lot of speculation online that talks about methods that work to fix or prevent carbon build-up. We actually do a real-world test using an intake manifold service to compare before and after results. We also cover alternative methods and offer a perspective on how viable these are as solutions.


Links Talked about in this video

Berryman Intake Valve Cleaner Used in this Video
https://www.amazon.com/gp/product/B08...

Carbon Build up on Direct Injection Engine (Intake Valves) AKA GDI Gasoline Direct Inection
   • Carbon Build up on Direct Injection E...  

Don't Overpay for a MK7 Waterpump and How to do it Yourself
   • Don't Overpay for a MK7 Waterpump/The...  

How Much Carbon Build Up at 10,000 Miles?? ~ 2019 Golf R
   • How Much Carbon Build Up at 10,000 Mi...  

Racingline Catch Can DIY | MQB MK7.5 GTI
   • Racingline Catch Can DIY | MQB MK7.5 GTI  

0:00 Introduction to Carbon Build Up
0:46 Port Injection V.S. Direct Injection
2:44 Why Carbon Build Up Happens
4:45 Common Preventives for Carbon
5:14 Italian Tune-ups
6:21 Intake Manifold Services
8:30 Testing an Intake Manifold Service
10:46 Intake Manifold Service Results
13:33 Do Catch Cans Help Carbon?
14:43 Water Methonal Injection and Carbon
16:25 Conclusion
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