2011 Kia Optima
Does anyone else have isses where you have a slight "ping" under acceleration/load? My 2.4 has been doing this since day one (which was 32K miles for me). I've complained to the dealer, but they are indicating that this is normal and I know that pinging is not normal. With modern engines and knock sensors, pinging should only occur when there is an issue. I've ran three bottles of Techron (as per the dealer) and only use top tier fuel (87 octane, Shell & Mobil). Any ideas?