Originally Posted By: burla
Engine ticked on Synthetic Puro after an oil change, all I did was change the filter to RP, tick was gone. For those who know about hemi tick, it is more like a knock or a loud sewing machine. I'm sure many people could waste a lot words trying to convince me of some position, but I believe the difference was the flow of the RP filter was better. I need the synthetic media, I am on long OCI with redline.
It may have been a defective adbv in the Purolator. I have seen that on a new one I cut open. Or it may be whatever was blocking a passage freed itself when a new filter was put on. The initial slug of oil may have dislodged something after the blockage relaxed from backflow. To know you would have to try another filter of the same type. The Mopar I believe on Chrysler products have a base end bypass like Ford. The media on those isn't as high a grade as on the synthetic. I wouldn't attribute the problem solving to a RP filter which uses pretty standard Champ labs parts. But if it works, it works.