CARCARETOOL VEHICLE GUIDE

Pontiac G8

Pontiac G8 — 2008–2009, 4-door sedan, 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8. Explore engine specifications, fuel economy, dimensions, tire sizes, seating, maintenance and tire-pressure guidance.

Pontiac G8
Engine3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8
Transmission5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual

About the Pontiac G8

Pontiac G8 is a 4-door sedan in the full-size car class, with source data covering 2008–2009. The available vehicle data lists 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8 as an engine configuration, paired with 5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual and a Front engine, rear-wheel drive layout. Public source material describes the model in the context of its design, market positioning and vehicle history.

This Pontiac G8 guide focuses on the details drivers commonly want to know, including engine information for 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8 and 5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual transmission information. Exact specifications should be matched to the relevant model year and market.

Pontiac G8 specifications at a glance

Use this table for the model-level essentials. Exact figures may vary by year, trim, engine and market.

Make Pontiac
Model G8
Model years 2008–2009
Body style 4-door sedan
Vehicle class Full-size car
Manufacturer Holden (General Motors)
Production December 2007 – June 2009
Market / country CA, FI, NL, US

Engine, transmission and performance

Engine information for the Pontiac G8 includes 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8.. Transmission information includes 5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual.. The listed drivetrain/layout is Front engine, rear-wheel drive.

Engine 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8
Transmission 5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual
Drivetrain / layout Front engine, rear-wheel drive

Dimensions, weight and practicality

Dimensions and capacity figures are presented as published source data when available.

Wheelbase 114.7 in (2,913 mm)
Length 196.1 in (4,981 mm)
Width 74.8 in (1,900 mm)
Height 57.7 in (1,466 mm)
Kerb / curb weight 3946 lb (1,790 kg)

Pontiac G8 other specifications

Image Pontiac G8 V6 — 02-04-2012 2.jpg
Name Pontiac G8
Model Code GMX557
Aka Chevrolet Lumina (Middle East, South East Asia, South Africa)Chevrolet Omega (Brazil)Holden Commodore (VE)

Pontiac G8 features and equipment

Features shown below are tied to the available source material for this model. Equipment can vary by year, trim and market.

Standard or documented features

✓Base G8 models come standard with six airbags (including full-length side curtain airbags), traction control, electronic stability control, dual tailpipes, 18-inch alloy wheels (fitted with either all-season or summer performance tires)
✓sports body kit
✓fog lights, power windows and locks, cruise control, black cloth seats and a seven-speaker audio system, including front center speaker, single-disc CD player, and auxiliary input jack
✓A "Comfort And Sound" package is available on V6 powered G8s, which upgrades the seven-speaker audio system and manual HVAC controls to the 11-speaker audio and automatic climate control found in the GT model
✓The "Premium" package upgrades the Sedan's cloth seats to leather seating surfaces, driver and passenger heated seats, six-way power driver seat adjuster, 6-way power front-passenger seat adjuster
✓rear center armrest
✓leather-wrapped shift lever, and the GT's standard leather-wrapped steering wheel
TIRE PRESSURE

Recommended tire pressure for Pontiac G8

Check the vehicle placard or owner’s manual for the manufacturer’s cold inflation pressure. CarCareTool estimates are clearly labelled when an exact verified value is unavailable.

Normal load32 PSI front30 PSI rear
Fully loaded34 PSI front33 PSI rear
Load condition Front Rear Status
Normal 32 PSI 30 PSI Estimate
Fully loaded 34 PSI 33 PSI Estimate

Calculate how much air to add

Frequently asked questions about Pontiac G8

These FAQs are generated automatically for this specific vehicle from the specifications, features and ownership data available in CarCareTool. Questions are selected by relevance so the page focuses on details that can actually be answered for this model.

What engine does the Pontiac G8 have?
The available source data lists the Pontiac G8 engine as 3.6 L ''LY7'' V6; 6.0 L ''L76'' V8; 6.2 L ''LS3'' V8. Engine availability can differ by model year and market.
What tire pressure should I use for the Pontiac G8?
For the correct setting, use the cold inflation pressure on the vehicle placard or in the owner’s manual. When CarCareTool does not have a verified configuration-specific value, its starting estimate is 32 PSI front and 30 PSI rear for normal load. This is an estimate, not an OEM recommendation.
What is the best engine oil for the Pontiac G8?
There is no single best engine oil for every Pontiac G8 configuration. Use the viscosity grade and manufacturer approval specified for the exact engine in the owner’s manual.
What body style is the Pontiac G8?
The Pontiac G8 is classified as a 4-door sedan.
What years was the Pontiac G8 produced?
The available vehicle record places the Pontiac G8 in the 2008–2009 period. Exact availability can vary by market.
What are the dimensions of the Pontiac G8?
The available source data lists length 196.1 in (4,981 mm), width 74.8 in (1,900 mm), height 57.7 in (1,466 mm), and wheelbase 114.7 in (2,913 mm).
What transmission does the Pontiac G8 have?
The available source data lists 5-speed ''5L40-E'' automatic6-speed ''6L80-E'' automatic6-speed Tremec ''TR-6060'' manual transmission options for the Pontiac G8.
Is the Pontiac G8 FWD, RWD or AWD?
The listed drivetrain/layout for the Pontiac G8 is Front engine, rear-wheel drive.
Who makes the Pontiac G8?
The manufacturer listed for the Pontiac G8 is Holden (General Motors).
When was the Pontiac G8 produced?
The available source data describes production as December 2007 – June 2009.
How much does the Pontiac G8 weigh?
The available source data lists a kerb/curb weight of 3946 lb (1,790 kg). Actual weight can vary with engine, trim and equipment.
Where was the Pontiac G8 built?
The available source record lists assembly information as Australia: Adelaide (Holden Elizabeth Plant).
What class of car is the Pontiac G8?
The Pontiac G8 is listed in the Full-size car class.
What platform does the Pontiac G8 use?
The available source data lists the platform/chassis as GM Zeta platform.
Which markets or countries sold the Pontiac G8?
The CarCareTool catalog currently associates the Pontiac G8 with CA, FI, NL, US. Market availability and specifications can differ.
What came after the Pontiac G8?
The available vehicle data lists Chevrolet SS (U.S.) as a successor where applicable.
What replaced the Pontiac G8?
The available vehicle data lists Chevrolet SS (U.S.) as the successor where applicable.
What cars are related to the Pontiac G8?
The available source data identifies related models as Buick Park AvenueChevrolet CamaroChevrolet CapriceHolden Statesman/Caprice (WM/WN). Relationships can vary by market and generation.
How often should I check the tire pressure on the Pontiac G8?
Check the tires regularly and before long trips, with the tires cold. Use the vehicle placard or owner’s manual as the source of the manufacturer’s recommended pressure.
Should I use the tire sidewall pressure for the Pontiac G8?
No. The maximum pressure printed on the tire sidewall is not automatically the vehicle’s recommended setting. Use the vehicle placard or owner’s manual for the correct cold inflation pressure.

Data sources and verification are available in the page editor; exact specifications can vary by year, market, trim and engine.

Pontiac G8 images

Vehicle images are shown from the stored source image records when available.

Pontiac G8 photo
Pontiac G8 photo