I don't know if I need it or not but the Cummins Diesel mechanic suggested 12 oz's of CRC Diesel Therapy every other fill up. He's a big believer in it and works on these rigs every day. Figure he knows a lot more than I do so I follow his advice. 150k miles and no injector issues. I buy it by the gallon at NAPA, think it's around 35 to 40 bucks. I changed my filter about every 15K miles.
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2006 3000RK
2009 Ram 2500
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