2017 2500 6.4L, and 5500 are both stock and have been MAXED out plenty without leaving normal range. Transmission fluid once in 100k for both, and both have the stock thermostat. The only thing that I do recommend is setting the parking brake in neutral until the brakes hold the weight, and none...
Thank You, is Amsoil a better alternative?
I was running 600 - 900 miles per day for 6 days with that oil. I will take another sample to determine if that had a negative effect.
Much appreciated input, but what would be a better alternative product? The oil sample was from 10 hour days going from California to Tennessee, and back. Not certain if so many miles per day would alter the numbers, or not but I was curious.
I believe people are too paranoid and start swapping parts. The truck is programmed to protect itself, and most people assume it's broken. Whether it's the shift that makes the rpm look like it's slipping, hard downshifts in tow mode, rear end popping when shifting out of drive, or not...
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