great car advice
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I'm really curious to see how they affixed the spark plugs to the lugs. I'm guessing glue of some sort.
I'd bet the car originally had lug bolts in a m12x1.25.... which is also a common spark plug thread size
Not to mention how they're delivering the high voltage to the plugs and how a tiny spark will melt snow. Glow plugs might stand a slightly better chance. Slightly.