I have recently purchase my first MB, a '73 450SL. This may seem like a silly question but, do these engines require a leaded fuel additive to prevent burning the valve seats?

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Gary


1973 450SL
1999 Silverado 4X4 Ext Cab
1999 Mercury Sable
1972 450SL Parts car

Previously owned keepers:
1967 MGCGT - 3L-6
1972 Mustang Fastback - 351C

Current Cylinder Index: 37