Yup, I have 658 miles on my ICE and the OLM reads 95% remaining. I suspect I'll have less than 2000 miles on my ICE after two years of ownership and that's when I'll change it. GM knows what they are doing. I always followed the OLM in every Corvette I ever owned so why ignore it now?It's 2 years or when the oil life monitor tells you to change it. Which ever comes first. Which for many Volt owners will likely be 2 years.
The Dexos certification is something of a gimmick. Most automotive oil companies don't want to pay for the licensing fee, which is apparently quite expensive. The only reason Mobile 1 purchased the certification is because they needed to keep their contracts with OEMs, who put Mobil 1 into new vehicles.Are Amsoil and Rons Dexos 1 certified? According to GM and the owners manual, they stress using Dexos 1 certified oil. Mobile one 5w-30 is Dexos 1, but I haven't found many others.
Castrol makes the same statement. I see this scam happen a lot in many different businesses. Someone sets up a certification requirement, convinces the end user that it is really necessary, and then charges the provider for the certification. The larger providers don't mind because it limits their competition, and all the while, the middlemen rake in the dough.
The manual says that engine break-in was done at the factory as part of the manufacturing process, so no early break-in oil change is necessary.Just did a "break-in" change on mine, with 750 ICE miles. Seemed like a good idea, so.. Went with Amsoil 0w-30 extended life stuff, might as well spend the extra for the best, it will be in there for a very long time..