Spark Plugs

cuveeMember

Anyone have a preference on spark plugs? The parts guy said Autolite 25. I thought it was AR25. Did the numbers change?

9/7/051:55 PM

Original Post

marlinjackThe Machinist #5723 AMARGOSA MACHINE 'Running on Empty- Middle of Nowhere'

Hi Curt! I have been running Champion plugs since I bought the car. They are perfect in color, a 'light' Beige and clean. The electrode lasts a long time. # RV15YC4 Gapped at .055" (as per the 'Book'; the OLD Book). They are a Hotter plug than the 'Autolite 25' (This is how the name appears on the plug)...

9/7/057:35 PM

❤️ 0

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