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Re: Oil changes, new Colbalt
First off you can do your own simple maintenance. Just keep all receipts for proof.
The 3000 mile OCI is a thing of the past unless your driving falls under extremely severe with most newer GMs. Those with the OLM, which the Cobalt has is more likely going to be 4,000-9,500 miles depending on how you drive. Suggest you read the owners manual on this oil monitoring system and other issues regarding simple service.
However, regardless of the OLM reading on my 07 I did my first service at 1,500 miles, the second at about 6,000. I only Amsoil synthetics in all my vehicles but depending on the car and how it's driven determines my OCI schedule.
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