In recent past, Patman had the post about Dino oils and Syn oils for those with over 150K miles. I'd like to take that a step further, even more important are those cars that never have nor do now, even with high milage since (Brand NEW)burned oil. I have had cars that maybe burned a few ounces per 10K and I have had some that burned 1quart+ every 3K. It didn't seem to matter, either they burned or not. I'd like to find the TREND in those cars, that never have burnt oil, EVEN with a lot of miles, the burn rate has NOT gone up.