The contact owns a 2014 Kia Soul. The contact stated that while her daughter was driving at an undisclosed speed, a burning odor was detected. The check engine warning light was illuminated. The vehicle was towed to the dealer and the dealer performed a recall repair for NHTSA Campaign Number: 20V750000 (Engine). After, receiving the vehicle back from the dealer the oil warning light illuminated. The dealer was made aware of the failure and an engine test was performed and diagnosed that there was sludge in the engine from not having regular oil changes. The contact was informed that the oil needed to be changed every 2,000 miles, instead of every 3,000 miles. The vehicle was not repaired since an appointment was not available until August 25, 2021. The manufacturer was not made aware of the failure. The failure mileage was 63,363.