GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 G8 🢒 Preface 🢒 Cautions and Notices 🢒 Approximate Fluid Capacities

The following approximate capacities are given in English and metric conversions. See Fluid and Lubricant RecommendationsFluid and Lubricant Recommendations , for more information. All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Re check fluid level after filling.

Application

Specification

Metric

English

Cooling System

  • 3.6L Engine

10 Litres

10.6 Quarts

  • 6.0L Engine

11 Litres

11.6 Quarts

Engine Oil with Filter

  • 3.6L Engine

6.7 Litres

7.1 Quarts

  • 6.0L Engine

8.3 Litres

8.8 Quarts

Fuel Tank

73 Litres

19.3  Gallons

Automatic Transmission

  • 5L40E 5-Speed - Drain and Refill

6 Litres

5.3 Quarts

  • 6L80E 6-Speed - Drain and Refill

5.7 Litres

6.0 Quarts

  • 5L40E 5-Speed - Complete Overhaul

8.9 Litres

9.4 Quarts

  • 6L80E 6-Speed - Complete Overhaul

9.9 Litres

10.5 Quarts

  • 5L40E 5-Speed - Dry

9.9 Litres

10.5 Quarts

  • 6L80E 6-Speed - Dry

10.6 Litres

11.2 Quarts

Differential

  • Rear Axle

1.1 Litres

1.2 Quarts