Pontiac G8
Maintenance specs for 2 variants of the Pontiac G8 — from 2008 to 2009.
2008–2009 Pontiac G8
3.6L V6 (LY7) · RWD
256 hp / 248 lb-ft
Transmission
Type5-Speed Automatic (5L40-E)
FluidDexron VI ATF
Drain & fill5.5 qt
Full capacity9.5 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Capacity8 oz
Differentials
Rear fluid75W-90 Synthetic GL-5 Gear Oil
Fuel
Tank18.5 gal
TypeRegular 87
Service Intervals
Oil change5,000 mi
Trans service50,000 mi
Coolant flush150,000 mi
Brake fluid45,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter15,000 mi
Drive belt100,000 mi
2008–2009 Pontiac G8
6.0L V8 (L76) · RWD
361 hp / 385 lb-ft
Transmission
Type6-Speed Automatic (6L80)
FluidDexron VI ATF
Drain & fill7.5 qt
Full capacity11.2 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Capacity8 oz
Differentials
Rear fluid75W-90 Synthetic GL-5 Gear Oil
Fuel
Tank18.5 gal
TypeRegular 87
Service Intervals
Oil change5,000 mi
Trans service50,000 mi
Coolant flush150,000 mi
Brake fluid45,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter15,000 mi
Drive belt100,000 mi