do they still call for 20w for oil in the 5.7L? ditch that and go 30W. i had a 14 ram that was dealer maintained. when i bought it (used with around 55K) it had a tick. i switched to redline 5w30 and royal purple oil filter. after 1400 miles tick went away. I sent every oil change out for analysis. when i traded it in at around 80k miles oil analysis were telling me i was good for 10k mile oci. most i ever went was 8500mi. was active on a few forums back then and many saw the same results. too thin oil. also, dont let them hot idle long.