Hi guys..

I bought a 96 328i and a couple weeks ago I was driving it at 40+ mph I
feel the car/engine shaking through the steering wheel, almost like its
stalling.. I slowed down and tried first and second gear, and both felt
better than higher gears.  I changed the spark plugs, and cleaned the
air intake.  When i changed the spark plugs, 2/6 spark plugs were
covered in oil.. so much i couldnt tell where it was coming from.  Is
that why the car feels shaky at high speeds?
The engine light isn't on, and otherwise the car feels ok.

Thanks VERY MUCH! =)

Sophia