I have had a few problems with oil blowing out of my dip stick and oil filler cap on my LS6 motor. I always felt that it was a breathing problem due to crankcase pressure. I went on the big track a few days ago and my 1 qt. Moroso oil catch can/breather filled almost immediately and started bubbling oil through the K & N filter, which is mounted on top of the catch can. Oil then dripped onto my headers and caused a smoke screen down the track.
I went home and performed a leakdown test on all cylinders while the engine was cold. The values read were all between 6-8%. I understand a cold reading will improve to a lesser % reading when the engine is tested warm.
HERE'S MY QUESTION: Do I need to do another leakdown test with the engine warm? Or is a cold test good enough???
Thanks,
Bill