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Engine type

Discussion in 'GM Powertrain' started by BIGREDDADDY53, Mar 14, 2012.

  1. BIGREDDADDY53

    BIGREDDADDY53 Rockstar 100 Posts

    I have a 2003 Tahoe Lt Z71 with a 5.3L the engine code is L59. Can I run fuel with some ethnol in it? Thanks much if somebody knows the answer.....Eric
  2. mfleetwood

    mfleetwood Rockstar 4 Years ROTM Winner 5000 Posts

  3. BIGREDDADDY53

    BIGREDDADDY53 Rockstar 100 Posts

    Thanks, Then now I can go back to useing 10% ethanol. Thanks Greatly
  4. mfleetwood

    mfleetwood Rockstar 4 Years ROTM Winner 5000 Posts

    You're most welcome.
  5. Z71_guy

    Z71_guy Epic Member 5+ Years 1000 Posts

    you can run E85 with flex fuel

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