zahra Posted December 21, 2011 Report Share Posted December 21, 2011 From quite sometime (3 months) im noticing that the back of my car having some black exhaust gases mark on top of my rear bumper. Arabian Automobiles saying its normal and they cant do anything. My concern is why its happening now and not three years back when i purchase my new Infiniti M45. Any help is highly appreciated on this regard, thanks in advance. Link to comment Share on other sites More sharing options...
sihan Posted December 22, 2011 Report Share Posted December 22, 2011 Seems like after age your engine producing black smoke which is causing this black spot on body above the exhaust tip. Go for Bilstein engine cleaner that can renew the engine internal component like new one and will help stop black smoke, pinking and missing (if any) Check with Emarat, Enoc and Eppco as i remember seing this sometime back, cant remember where. Link to comment Share on other sites More sharing options...
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