Well, I work out at our local airport, and I have cheap access to the AVgas, which is 100 octane low lead. I was wondering if I could use this gas in my car, since my cat is hollowed out? I would only be useing it once in a while, or maybe as an additive to raise the octane rating on the car every tank. Do you guys think this would be okay on my car in the sig?
Try running leaded gas and you will see what happens to your spark plugs, gas filter, and your fuel injectors. There is a reason why cars have a "unleaded fuel" only sticker on it. I ran leaded fuel on my old IROC-Z. Wanna see my injectors? 