Just tried out another brand of oil and wow my hemi tick went away.

Petro Canada supreme 5w20 conventional oil with wix filter. Was literally a couple more dollars than castrol gtx or mopar oil. So far very impressed.

 

I have used Mobil 1 fully synthetic since trucks first oil change, tick was there this last oil change went with Royal purple HPS 5w 20 and i know it sounds crazy but i noticed a huge difference and how truck ran smoother and more respsonsive but tick is a little worse. I am using royal purple on everything from now on, tranny fluid, gears etc stuff is amazing.

 

Royal purple is great oil. Same with Redline. I run those oils im my car, and my cars has spent many seasons getting rat bagged on the track and still runs strong.

My truck on the other hand doesnt see extreme use like my car does so I think conventional is just fine.

 

I've run Royal Purple in my HEMI since the day I bought it. People around here were complaining saying the Royal Purple is overpriced and the Mobile 1 is better for a cheaper price. I figured I'd give it a try. Did my oil change last week, just hit 65k miles. Well, let me tell you, my tick went from non-existing to louder than hell! I'll be spending the extra coin to go back to Royal Purple, probably before my next change is due.. Just my

 

Rp too, ive also put mobil1 in mine..that lasted one start up..valve train noise way to loud..never again..i run castrol edge synthetic in the winter and rp the rest of the time with mobil1 filter.

 

What type of tick ?! I have not heard any ""tick""ing going on in my truck.. My Truck is a 2006 Power Wagon with 60k

 

The tick may have gotten louder, but the synthetic oil is definetly protecting your engine better with the smaller molecules, which allow it to coat the engine better. I run Amsoil in my Cummins, but I also know a lot of guys that run Shaffers, Royal Purple, or Mobil 1. I am of the opinion that fully synthetic oil is the way to go in these trucks, gas or diesel. Brand is not as important as making sure whatever you run is full synthetic. Again, this is just one guys opinion, and I am partial to Amsoil.

Scott