I had an issue with one of my cars yrs ago (chevy Tahoe) and learned some oil filters have a valve to not allow oil to flow out when the car is off.

Since then, I have noticed the better filters have this feature (even on my ford focus). I doubt the cheaper filters have it.

My Tahoe was a bit quieter on startup, when I went with the good filter. It keeps some top end training I think. Or it keeps the filter from draining.


Last edited by 5571; 04/28/15 01:00 PM.

67 hemi GTX silver 4spd, 70 cuda convert 340 4spd, 71 cuda 340 4spd (Curious Yellow, white billboards/interior), 70 Mr Norm's Challenger 440 4spd