Well folks, believe it or not, I've been lurking a long time and read all 2622 pages of this thing. Thank you for all of the knowledge and information you have shared.
Just thought it was time for me to share my two cents. I bought this truck from my neighbor, when he was upgrading to a big horn. Prior to getting it, we changed the oil every time he was at "10% left" on the EVIC and he used the cheapest syn. 5w30/filter combo he could get at the store that day. He/I tow bobcats, tractors, etc in the spring-fall and snow plow in the winter. It is a work truck and is treated like a work truck. His first 55k miles were mostly city, my 20k have mostly been highway, but both still would count as "mixed."
2014, 2500
Miles: 75,***
Idle: 639 Hrs
Drive: 2484 Hrs
Idle RPMs: 650
Oil change 1: PUP (x4) 0w40, (x3) 5w20 (June '17), Approx 8,000 miles, EVIC 10%
Oil change 2: Red line 5w30 (Jan '18), Approx 6,000 miles, EVIC ~30%
Oil change 3: PUP (x3) 0w40, (x4) 5w20 (June '18), Currently @60% Approx 4,000 miles
RP filter at every change
Prior to the PUP my hemi tick was terrible, like average person would notice (why he sold it to me cheap). The PUP quieted it down more to the "I know what a hemi tick is, and if I listen for it, I can still hear it." The average person wouldn't notice it, but could hear it if you pointed it out. Redline cause NO CHANGE in the tick in my truck for the first 5k miles. After that, it definitely came back, no where as bad as before, but much louder than the PUP, especially cold start ups. At a little over 6k, I dumped it and went back to the PUP. At this point today, my engine sounds like his new big horn with the rare chatter at a cold start (approx 5 seconds, sitting 8+ hours).
I don't think anything is wrong with Redline, I have ran it for years in my Jeeps with nothing but exceptional results. I just personally think it just preformed poorly in a HD situation. The only difference the RL would have had over the PUP, would have been the stop/go of plowing.
