If you would like, provide the last 8-digits of your VIN (PM if you prefer), and I can look into your case to see if any additional information is available.
I look forward to your reply.
Louis (assisting Tricia)
GM Customer Service
Last 8 are 7Z613606. Last consumption test was botched. Overfilled, which made it look like it wasn't using as much oil. I finally found the service number. It is 71-920-271-6566. Talked to Manny at ext. 22958.
Thank you for providing your information. I have reviewed your case and it appears that the District Specialist was unable to contact you. I would be happy to open a new case for you. Please provide the following information via PM, so I can verify it with my records: your full name, address, phone number, best time frame to contact you, vehicle mileage, VIN and the name and city of your preferred dealer.
Once I receive your information, I will set-up a new case and forward the case to a District Specialist who will contact you directly.
I look forward to your reply.
Louis (assisting Tricia)
GM Customer Service