Cm871 oil pressure loss

[SquareOne]

(09-28-2019 )Murray Farms Wrote:  2010 Lonestar cm871. Just over 200,000 miles. New DPF and engine oil installed by dealer before I purchased truck less than 500 miles ago. At startup, engine oil is at 40 PSI. Within 15 minutes of driving goes down to 20 psi. Attach an empty trailer, drive 20 minutes oil pressure drops to 10 psi with stop engine alarm. Coolant stays at 180°oil temperature at 220°.Hooked up mechanical oil pressure gauge that verifies OEM gauge is accurate. Any truth to fleetguard [/size]oil filters plugging up?

Plugged up with soot possibly?? Did the pressure do the same at the beginning of the 500mi, or has it progressively got worse? 200k on a 2010 is nothing, unless it was used in an unfavorable manor....would make me question the amount of idle time incurred. Any way to verify the hours on the engine? The new DPF in such a short mileage interval seems to also be a red flag.

- When I inspected mine @ 268k, it was in very good condition. No signs of face plugging or build-up of any kind to indicate an issue. Just lead me to believe the dealer may be giving you little to none of the actual story...