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  1. Is the Kia K5 reliable? | Kia K5 Forum

    Feb 21, 2025 · The 2022 K5 gets an average reliability rating with build quality as average and "minor transmission problems" and brakes being much worse than average. Every other item …

  2. check engine p0507 | Kia K5 Forum

    Dec 6, 2024 · hey k5 owners, I have a GT-Line with 54K miles on it and recently just got a check engine light. Code P0507 P0507 "Idle air control system RPM had high...

  3. Have 2025 GT Line. What is best fuel type use? | Kia K5 Forum

    Aug 27, 2024 · Hi I recently got the 2025 K5 GT Line but I have no idea what fuel type to use. I've been using Costco 87 octane fuel. Does it need premium 91 or 93? Or even 89 since it's a 2.5 …

  4. 2025 GT Line AWD | Kia K5 Forum

    Jan 9, 2025 · Hey everyone! I just joined the forum and wanted to share some exciting news—I recently got a new K5 and I couldn’t be happier. I’m looking forward to learning more about it, …

  5. Any Mods to do on 25' K5 GT for Someone Young | Kia K5 Forum

    Jan 9, 2025 · I recently got a 2025 Kia K5 GT in wolf grey and I am wondering what mods I should do that won't void the warranty and sacrifice reliability. I want to get tints done and maybe get …

  6. Fuel Smell/Leak.....Help! | Kia K5 Forum

    May 20, 2025 · I appear to have some kind of fuel leak on my K5. I never can smell anything when parked. Fuel smell only shows up when I have driven a bit, return to the car, take off and …

  7. Oil Change 2.5T engine - Kia K5 Forum

    May 9, 2023 · Just finished changing the oil in my GT 2.5T engine for the first time. Was going to take pics and post but found the info here is more then adequate: Scroll down to 2.5 engine …

  8. 2022 vs 2024 AWD | Kia K5 Forum

    Dec 22, 2024 · New to the forum and the K5, but al ong time Kia owner. We are looking at a 22 and 24. The 22 has red interior and 24 is a loaded GT line. Has there been any known issues …

  9. Best Engine Oil for the K5? [POLL] | Kia K5 Forum

    Jul 23, 2025 · I drive a 2025 K5 GT (2.5T) and recently started looking into different engine oil options. I’ve always used Valvoline Advanced Full Synthetic Engine Oil 0W-20 on my K5s and …

  10. HVAC Blower Stopped Working - Kia K5 Forum

    Jul 17, 2023 · Hi all! We just bought a 2022 K5 GT-Line with 24k miles. It seems to be a wonderful car overall but after only 2 weeks of owning, the HVAC blower motor seems to have stopped …