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tsq396 Feb 20th, 03, 8:02 PM I just had hardedned valve seats installed on my heads,the problem is I have a gas tank full of fuel with stuart warner lead additive added to it.Will running this gas damage my new seats??Should I drain it?? ------------------ 70SS396 t400 4:10s Red/Black Stripes "The Boss rod" Pat Kelley Feb 20th, 03, 8:26 PM I'd run it. Cable Feb 21st, 03, 3:59 AM I highly doubt there will be any issues. The lead in leaded gas was used as a "cushion" for the valve seats. Just because you added hardened seats wouldn't affect anything. ------------------ Cable -'70 El Camino (stay tuned) "He who dies with the most toys.....still dies...." http://www.chevelles.com/forum/Forum4/HTML/011400.html Corey872 Feb 21st, 03, 8:40 AM I think the main issues with leaded gas (beyond the environmental) are "poisoning" (or fouling) of catalytic convertors and O2 sensors. If you don't have any of those, you should be OK. ------------------ Corey Corey's 67 Chevelle Page (http://www.sunflower.com/~corey872) | ||