Hi


I changed the oil with oil filter. Oil is 10w-40 as recommended by auto store. Did an engine flush thing before draining the oil. Swapped the oil filter poured new oil in Fuchs brand.

Well the car started with half a turn no problems and actually the engine sounded quieter then its used to be. It warmed up fine no issue. Stopped started again no problems nothing everything perfect.

Then about 40 min later the car starts rpm will go up to about 1500 then it will start going down and dies with little stumble. It happens for about 3 to 4 times more same result and after it will start rpm will go up then go down to almost stalling the make they way back up to normal idle. After that it drives fine but still feel some minor hesitation when accelerated.

It happens every time when the car is warm but starts right up when its cold.

Anyone herd of anything like that before?

Any help appreciated.