Walnut Shell Blasting is now part of the routine maintenance for modern GDI (Gasoline Direct Injection) engines. This process cleans the intake valves and ports using finely crushed walnut shells (walnut media) to safely remove carbon buildup and restore performance.

We have adapters for most European, Domestic Asian Vehicles, and if we do not have one for the engine in your vehicle, we can CNC one.

Preventative Maintenance:

  • Proper GDI approved engine oil 
  • Changing engine oil at manufactured specific intervals
  • On performance engines it is not uncommon to use methanol or water injection to keep the back side of the intake valves and ports clean. 
  • Catch cans & Air oil separator tanks can help reduce the amount of oil vapor entering the intake system from the vehicles PCV system, combating LSPI along with the oil coking on the back side of the intake valves.
  • Engine calibration can also change the EGR effect of valve opening on the intake side to reduce carbon deposits.
  • Driving at increased engine speeds can help reduce effective build up on the intake valves at the cost of slightly higher fuel consumption.
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