- Jun 6, 2006
- Great White North.. eh
Let's hear the experience and opinions flow. What oil brand, viscosity, and spec is the most resilient to contributing to intake carbon deposits on GDI engines. I've read many threads, on many forums, for many different types of GDI engines. There is consensus that a full synthetic (whatever that means...?) shows clear signs of reducing the intake deposits. I suspect because of syns tolerance to high heat and a higher quality base oil with lower noack.