Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Pontiac G8 BaseFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 4.00 OZS. | 0.11 L | PAG 46 | S | |||
| Air Cond Refrigerant | 1.28 LBS. | 0.58 KG | R-134a | S | |||
| Automatic Transmission Fluid | Trans Mfr CD 5L40-E/M82 | Drain and Refill | 7.40 QTS. | 7 L | Automatic Transmission Fluid DEXRON VI | All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. | S |
| Automatic Transmission Fluid | Trans Mfr CD 5L40-E/M82 | Overhaul | 9.40 QTS. | 8.89 L | Automatic Transmission Fluid DEXRON VI | All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. | S |
| Automatic Transmission Fluid | Trans Mfr CD 5L40-E/M82 | Torque Converter (245 mm) | 3.10 QTS. | 2.93 L | Automatic Transmission Fluid DEXRON VI | All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. | S |
| Automatic Transmission Fluid | Trans Mfr CD 5L40-E/M82 | Torque Converter (258 mm) | 3.30 QTS. | 3.12 L | Automatic Transmission Fluid DEXRON VI | All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. | S |
| Brake Fluid | N/A | N/A | DOT 4 Brake Fluid | S | |||
| Differential Gear Oil | Rear | 1.20 QTS. | 1.13 L | Differential Lubricant - Castrol SAF Carbon Mod | Both LSD and Non-LSD differentials use the same fluid. | S | |
| Engine Coolant | 3.6L Eng | 10.60 QTS. | 10.03 L | 50/50 mixture of DEX-COOL and clean, drinkable water | All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. | S | |
| Engine Oil | 3.6L Eng | w/Filter | 6.90 QTS. | 6.52 L | API - SAE 5W-30 | Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. | S |
| Fuel Tank | 19.30 GALS. | 73.05 L | S | ||||
| Power Steering Fluid | N/A | N/A | Automatic Transmission Fluid DEXRON VI | S | |||
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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