720s Cats replaces at 8k miles | McLarenChat
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720s Cats replaces at 8k miles

Discussion in 'Super Series (MP4-12C, 650S, 675LT, and 720S)' started by Ahmed Arnab, Aug 25, 2020.

  1. Ahmed Arnab

    Ahmed Arnab Rookie

    Jul 20, 2020
    3
    Ann Arbor, Michigan
    Full Name:
    Ahmed Arnab
    My 720s (bone stock 2018 vin ending 1485) is having its cats replaced after an intermittent engine system fault warning and the CEL coming on. I have never had to replace my cats on any car I have owned and i am very much concerned as to why such a relatively new car would need new cats. Makes me wonder if I should get an extended warranty later. Did this issue happen with anyone else? Is my car a lemon lol..I rather like my 720 I drive it everyday wouldn’t want it to start degrading. Dealership (mclaren Troy Michigan) didn’t say much
     
  2. Night life

    Night life Karting
    Owner

    Dec 1, 2007
    68
    Regina, Canada
    Full Name:
    Roberto Giannini
    Sounds like you might be getting bad gas for it to do that, no not a common problem, switch gas stations, always use same station and always high premium.

    Had same issue with my Ferrari, one bad gas station, clogged up one of my cats caused back pressure burnt a hole in my piston, bad gas is a real issue.

    .
     
    Ahmed Arnab likes this.
  3. Ahmed Arnab

    Ahmed Arnab Rookie

    Jul 20, 2020
    3
    Ann Arbor, Michigan
    Full Name:
    Ahmed Arnab
    Man I’m petrified to hear that back pressure from clogged cats can so easily occur and mess up your car. I always use 93 but I guess not all 93 is the same, I’ll try to be more vigilant. Thank you for the reply :)
     
  4. Nikko

    Nikko Rookie

    Aug 18, 2020
    8
    Ca
    I always liked Shell...and I always got good results so far in terms of efficiency and sound.
     
    Ahmed Arnab likes this.
  5. Ahmed Arnab

    Ahmed Arnab Rookie

    Jul 20, 2020
    3
    Ann Arbor, Michigan
    Full Name:
    Ahmed Arnab
    Yeah I haven’t heard or experienced anything bad regarding the v power gas from shell
     

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