Do cars that burn oil tend to foul spark plugs quickly?

Suddenly I have developed a rough idle and I stumble on acceleration.

I'm guessing that my plugs are fouled.

Granted i know that it could be something else -- bad fuel injector, bad spark plug wire, pcv, etc.

Note: i already did seafoam through the intake & gas treatments. So it's not that.

I hoping that it'll be one cheap spark plug & not a costly fuel injector.

thanks for reading.

 

It turned out to be a fouled spark plug. However the plug was fouled because of a bad grommit/spark plug ring. Lucky for me that a new plug and a new grommit is a cheap easy fix. Much cheaper than what it could have been.