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  1. 3G 2011 - 2016 Sportage
    What is the correct pressure rating for the radiator cap? I heard a tech manager say 8; the last one I bought was spec'ed at 11 psi; and when I look them up today, only 16 psi are recommended. Mine will push coolant to the overflow when hot, but it doesn't suck it back to the engine when cold. I...
  2. 4G (2011+) Optima
    Other than making the gas companies richer, is there any benefit to running 89 or 93 octane in my 16 1.6t? Car seems to run fine on 87 but I know other turbo cars need 89 or 93.
  3. 4G (2018- Present) Rio
    Hi, first time poster, so please bear with me. I could not find this anywhere in the forum before posting this. I bought my 2019 Kia Rio LX in Rockwall, TX August 2019 after having a 2010 Forte, which I liked quite a bit and a short stint with a Ford Focus, which I did not care for. Anyway...
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