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Home >> Porsche >> 2017 >> Panamera Base >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> 20 Fuel Supply, Actuator 3.0L Turbo -- 971 - PANAMERA (971) >> WM, 200101 Checking Fuel System >> Tools And Materials >> Approved Leak-Locating Gases (Test Media)

Approved Leak-Locating Gases (Test Media)

Leak-locating gas (test medium) Designation Composition/purity
Helium He (gaseous, compressed)
  • 4.6 (minimum quality)
  • 5.0, etc.
  • 99.996 volume % (4.6) He
  • 99.999 volume % (5.0) He
  Not balloon gas!   
Forming gas
  • Forming gas 5
  • 95% nitrogen N and 5% hydrogen H