Quote:
Originally Posted by DSK
Some decent information in this thread and I came across it in a search. I didn't know that Volvo changed suppliers for spark plugs from Champion to someone else.
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I am fairly certain Volvo have never used Champion. They had always been Bosch but some newer models use Denso. Not sure on the very latest stuff but since the 60's Volvo have used Bosch plugs.
I have never managed to get a Volvo engine to run right with Champion but Volvo, Bosch, NGK and Denso have been fine but I have found Volvo (Bosch made) plugs to be better than Bosch ones!