Ro646aExplorerJun 03, 2018Cummins ISC oil pressure at idleThe motorhome I'm ready to pull the trigger on has a Cummins ISC engine and It only has 10 lbs of oil pressure at idle. Is this normal? It seems awfully low. The engine has 25000 miles on it.
Johnny_G1ExplorerJun 03, 2018completely normal, nothing new for a cummins. been that way for yrs when the oil is hot.
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