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Old 20-03-2018, 05:19 PM   #2
Peter B - CV8
FF.Com.Au Hardcore
 
Join Date: Sep 2005
Posts: 1,360
Default Re: Inlet valve carbon build-up

Yes, most manufacturers have taken steps to reduce this well known problem. It involves getting their service advisors to give you a call recommending a "top end clean" when you have the car in for a service..
Some makes suffer this problem more than others. From memory VW 7 Audi are pretty bad.
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