Originally Posted by LeakySeals
I was using the Ultra for 3 years. I tried the TG a year ago as an experiment to see if a different oil filter would lessen my 6.0 LQ9 startup ticks and piston slap. That worked, don't hear anything anymore. That engine just doesn't like the Ultra. Still using the same oil I used with the Ultra, and there is no visible difference in the color of the oil, looks about the same after 6500-7k. So I think the TG efficiency is about the same, but for that engine, the flow is better. So now both my vehicles use the TG.
Pretty hard to believe the TG flows better than the Ultra. Start-up ticks is an indication of the ADBV possibly leaking - maybe those Ultras didn't seal 100%. Piston slap has nothing to do with the oil filter.