If he has the heads redone with hardened valve seats he can run unleaded at full throttle without issue. The reason old engines require leaded fuel is that the valve seats are soft iron and the lead keeps them properly lubricated with the high temps of the high compression. Running unleaded in a high compression motor without hardened valve seats can lead to carbon buildup and detonation.
This is a beautiful Cadillac. A very nice example. Enjoy it. I would one day love to find a 59 to add to my Cadillac collection.
The part of it that you want to see begins at 6:55.
The car screams American quality and respect
these people are completely charming
If he has the heads redone with hardened valve seats he can run unleaded at full throttle without issue. The reason old engines require leaded fuel is that the valve seats are soft iron and the lead keeps them properly lubricated with the high temps of the high compression. Running unleaded in a high compression motor without hardened valve seats can lead to carbon buildup and detonation.
there is 'merica for you. love it.
not a sedan de ville - this is a series 62 6 window sedan-note the crest on the front fender
what he says about murices cars is a case from the dawn of the car until the mid 70's... and he speaks for only british cars not the rest of europe