JerryU, That's 100% false information you posted. The OLM does NOT measure oil life in any accurate manner. The oil in my new C7 is over 2-years old. It reflects that the oil has close to 50% life left according to the Almighty OLM. So much for that perpetrated oil-scam. Synthetic oil does not go bad in 366 days. The OLM is a looking like a bogus instrument. You better re-think that one. ;)