Subject: | Oil Consumption Guidelines for the LS2 Engine |
Models: | 2005-2006 Pontiac GTO |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Engine oil consumption of more than 1 quart in 2000 miles.
A higher rate of oil consumption is normal for vehicles equipped with manual transmissions that are driven aggressively. By "aggressive," we mean operation at high RPM (3,000 RPM to redline), with frequent use of engine braking (using the engine to slow the vehicle). This characteristic does, however, require the owner to check the engine oil level at sufficiently frequent intervals, especially when driving aggressively, to assure the oil level remains within the recommended operating range. As the owner's manual recommends, you should check the oil level every time you get fuel.
The accepted rate of oil consumption is 1 Quart in 500 miles. If the vehicle is not using more then 1 Quart in 500 miles no repairs should be attempted.
Operating your vehicle with an oil level that is below the minimum level indicated on the engine oil dipstick can result in severe engine damage.
Owners of the 2005-2006 LS2 equipped Pontiac GTOs will be receiving a Customer Advisory Letter with this information.
A copy of the Customer Advisory Letter can be found in Dealerworld with message number WIS20070172.
Note: Questions about this information should be directed to the Pontiac Customer Assistance Center at 800-762-2737.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.