Yeah stupid goverment, imagine thinking we should be able to breath and not be poisoned Lead is a poison, it really screws up kids in their formative years. Cars last longer today then they did 30 years ago, maybe the solutions should have been found a lot sooner. The only thing lead protected was valve seats. I rebuilt my 63' 283 and put hardened valve seats in the heads, no more issues. every car since the late 70's has had hardened valve seats. Sulfur in diesel was for the injectors and pumps, and nothing else. Today's injectors are far superior to those 15 years ago. Injector pumps have gone the way of the dodo bird so that's not an issue ether.
Whitelightning