SouthTexan
Senior Member
- Joined
- Jan 24, 2015
- Posts
- 2,149
- Reaction score
- 1,303
- Ram Year
- 2014
- Engine
- 408 CTD
Good info. I'd also throw in the crankcase filter, egr cleanings, amd faster wear on tires ball joints etc from the shear weight of the Cummins. In the end, as I stated above. There isn't a huge difference in cost over time like some think. Also depends on what you do with the initial upcharge. Even if one doesn't have the cash, if you put 8700 into a mutual fund over 72 months, what's that worth after 10 years? If someone did that over the last 10 yeas they would have aahuge chunk of cash plain and simple. Interesting thought many dont factor in. Also, did the 6.7 update oil change intervals? Mine recommended changes earlier than the hemi. A case of oil every 6 -8 months is a factor too. If that has changed then maybe it's more of a wash.
EGR cleaning is no longer recommended due to the SCR/DEF system and the crankcase filter is about $70. If you want to add up what it costs for the 12 PM's on the 6.4L and the 6 PM's on the Cummins over the course of 100k, then I think that would cover the extra $70 for the crank case filter. My oil and fuel filter changes cost me $135 every 15k if I do it all myself and $155 if I let my dealership do the oil. How much do you pay every 8k?
The Cummins oil needing to be changed every 6 months is a recommendation by Ram(not Cummins) just like 89 octane is for the 6.4L and how many of you guys actually abide by that? The 6.7L in similar applications in other mskes has a 12 month 15k mile interval, but Ram cuts it back to 6 months.
As far as the semantics of the added wear due to weight, that usually doesn't show by 100k and the diesel trucks have a higher rated front axle and suspension for this reason.
Regarding the additional $8,700, most people take out a loan for $40k+ trucks so it is not like the bank will give you an additional $8,700 on top of the loan just so you can invest it.