Anyone have a favorite replacement spark plug for a 1949 Olds 88?

 

Rockauto says that any of Autolite 86, Champion 592, and ACDelco R45S will work. Any reason not to use one of those? They're all good brands.

 

Nope. No reason at all. Those were the brands I was deciding between. I’ve had great luck for many years with champion in my jeeps but had bad luck with them in a Honda. It’s true, one copper core plug isn’t much different in construction than another. But small variances in the plugs heat rating can make a difference. All will work, just wondering if people have found one better than another. Especially as the resistor relates to the 6v system. I was reading the original service manual the other day and they had a lot of issues early on with radio interference. They even sold s ant static powder you’d add to the wheels. Crazy!