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Old 02-06-2020, 01:26 AM   #6
dave in australia
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Join Date: May 2010
Location: Victoria, Australia
Posts: 1,175
Default Re: Champion W-20 plug

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I use W-20's and have never had a problem with them. The engine in my Tudor was getting on a bit, and would get a bit fumy when hauling up a long climb, but the plugs never fouled.
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