Carbon buildup is a common issue on modern diesel engines, particularly vehicles that spend a lot of time driving around town or at lower engine speeds. Over time, deposits can build up in the intake system and around the intake valves, restricting airflow and affecting engine efficiency. This Holden Colorado 2.8L Turbo Diesel came into Revhigh for a carbon clean and walnut blast to remove years of built-up deposits. Just How Dirty Was It? As you can see from the photos, the

Is Your Direct Injection Engine Losing Power? Many modern direct-injection engines slowly lose performance without their owners even realizing it. Over time, carbon deposits build up on the intake valves, restricting airflow and affecting combustion efficiency. The result? Reduced power, poor throttle response, rough idle, increased fuel consumption, and an engine that simply doesn't feel as sharp as it once did. That's exactly what brought this Audi SQ5 into our workshop. Th

In our latest project, we delved into the Audi SQ5 3.0L BITDI, embarking on a meticulous three-stage carbon cleaning process to rejuvenate its diesel engine. Stage 1: Chemical Cleaning We began with a thorough chemical cleaning process, targeting stubborn carbon deposits and buildup within the engine's components. Stage 2: Hand Cleaning Next, our expert technicians meticulously performed hand cleaning, ensuring every nook and cranny of the engine was free from carbon residue,