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#9
03-29-2017, 04:11 PM
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My '14 Ram 2500 w/Cummins is recommended 15,000 mile changes when using Synthetic oil. Truck is at 102K and getting better mileage on the road. An honest 20 mpg on the last road trip.
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Snarl softly and carry a big stick! 1969 Hurst/Olds 13.26 @ 103.12 Pure Stock Rusty Small 
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