What oil does a 12v Cummins take?
What oil does a 12v Cummins take? 1989 - 1998 Dodge Ram, Cummins 12v Fluid Specs & CapacitiesEngine oil:15W-40 (ambient temperature > 10° F)5W-30 (ambient temperature < 0° F w/o block heater)Engine coolant:50/50 ethylene glycol coolant, distilled waterAutomatic transmission fluid:47RH/47RE 4 spdManual transmission fluid:GETRAG G360 What oil goes in a Cummins? Cummins specifically recommends two Valvoline oils for its engines. The 15W-40 oil is for temperatures above 0 degrees Fahrenheit while the 5W-40 is for extremely cold temperatures. What kind of engine does a Cummins 5.9 have? Here is our article on Cummins 5.9 12v engine problems. The ISB 5.9...