Soot Black Tail Pipes in 2012 Azera? - Page 4

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  1. #31
    Join Date
    Mar 2013
    It is hard to imagine that this much particulate matter, soot, coming from the exhaust would allow the car to pass federal emission regulations. If you live in a state that tests emissions I think I might go down and do a test and see if it passes. If it does not pass the emissions test then Hyundai has a real problem on it's hands.

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  3. #32
    Junior Member
    Join Date
    Apr 2013
    Finger Lakes NY
    I've experienced the same "black soot" on our new 2013 Azera. 390 mile trip to OC MD on regular fuel and the soot was fairly noticable. Trip home I ran Sunoco Ultra 93 390 miles and the soot was barely there. I think it's just a product of the GDI engine. Try running higher octane fuel. There is definitely a difference althought it will cost you more for a tank of gas.

  4. #33
    Junior Member
    Join Date
    Nov 2013
    San Mateo Coast - California
    My 2013 Azera gets sooty and the air filter gets pitch black within 7500 miles. I found rocks and bugs in it and am not happy about that. I also get black soot on the door ledges below each and every door. I run regular gas, and while I use a good detergent gas and add Techron fuel treatment as recommended (each 7500 miles); it helps only a little in reducing the particulate matter. If I don't accelerate too quickly, the soot seems to be lighter. In ECO mode I'm only getting approximately 18 mpg on shorter highway trips; and on longer hwy trips sometimes 21-23 mpg. If the coach wasn't so comfortable, I'd be a little disappointed as I like to keep my car looking it's best and was hoping to get better mileage.

    Last edited by Joel; 06-03-2015 at 02:24 AM. Reason: added photo

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