Engine Oil and Fluid Recommendation for Audi A6, S6, SR6 (4A, C4; 4B2, C5) – A6 2.7 Turbo, -quattro Properly selected engine oil for a car is the key to a long and trouble-free operation of the engine.
  • Engine: AJK
  • Engine oil capacity, liter: 6.0
  • Manual transmission capacity, liter: 2.5
  • Automatic transmission capacity, liter: 9.0
  • Differential capacity, liter: 0.8/1.7
  • Power steering capacity, liter: 0.9
  • Cooling system capacity, liter: 6.0
  • Year: 1998-05

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 red