I have an 86 ski nautique, with a 354 carborated engine. I know a load of people have older boats on this forum. We have been filling it up with regular unleaded gas since we have had it. The warning sing right next to the gas tank says use only leaded gas because it might cause corrosion to engine parts. The problem is that Im pretty sure there is no such thing as lead gas any more and I dont think thers even lead additives anymore. So far the boat has been fine, but should I be concerned and is there some sort of substitute for a lead additive?
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