Use quality oil that meets the spec in owners manual. Change according to OLM or owners manual. Forget oil additives.Anyone Familiar "Nano Pro MT Oil Stabilizer?" I've read it was designed through the military and it is some pretty good stuff. I want to add heightened protection to my 2004 Chevy Trailblazer with the Vortec 4200 VVT I6? it has 153,000 miles on it. I just bought it and since I don't know about the oil change history, I'm just guessing they ran regular conventional oil in the motor. I've only had the vehicle a month and despite the fact that it runs okay. I had to get the VVT sensor replaced already. I've read these engines are sensitive to oil condition. Thanks for any help.
Where did you read that they are sensitive to oil condition??