> I think lead and lead substitutes boosted octane.
Tetraethyl lead is a cheap way to boost octane. But gasoline can be formulated to boost octane without using lead, it's just more expensive.
Newer cars are much more tolerant of low-octane fuels, due to technologies such as knock detection and fuel injection.
It sounds like you've owned a lot of interesting vehicles. Most folks sell their Jags because they get sick of the repair bills, not because they're uncomfortable.
Note that today's octane ratings are exactly comparable to those back in the sixties. Current pump ratings are an average of the Motor and Research octane ratings. Back in the day, I believe they used the Research rating because it is higher than Motor.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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