Just picked up a car with 146,000 miles and it appears to smoke out the exhaust on accel. I'll get to the source later but wonder what magic elixirs I could try in the interim. I think there is a BG product that some folks have used with some success. My expectations are low but what the heck. Hey this post is just as relevant to X1/9s as they are to the dreaded M car, I don't know the general tone on Miata.net yet and I do sadly trust you guys.