Engine Oil and Fluid Recommendation for Audi A6, S6, SR6 (4A, C4; 4B2, C5) – A6 1.9 TDI, -quattro There is a huge selection of lubricants in the automotive market. In this regard, both an ordinary driver and a specialist will not be able to give an unambiguous answer to the question of which engine oil manufacturer to choose. We offer and recommend the proven brands.
  • Engine: 1Z, AHU
  • Engine oil capacity, liter: 3.5-3.8
  • Manual transmission capacity, liter: 2.4
  • Automatic transmission capacity, liter: 7.0
  • Differential capacity, liter: 0.7/1.7
  • Power steering capacity, liter: 1.0
  • Cooling system capacity, liter: 6.5
  • Year: 1994-96

Engine oil

  • Synthetic oil: Longlife III 5W-30 (Longlife 3 5W-30)

Manual transmission

  • Synthetic gear oil: 75W90 GL5

Differential

  • Synthetic gear oil: 75W90 GL5

Automatic transmission

  • Synthetic transmission fluid: AISIN-AW

Power steering

  • Hydraulic fluid: CHF/Central Hydraulic Fluid

Cooling system

  • Antifreeze for the engine: Antifreeze G12+ violet