Hi all,
I have a 2007 WK diesel jeep I bought used in Nov 2010 with 25k miles.
It is extremely difficult to find oil that meets the manufacturers specs (MB 229.51). I have got to believe there is no way in heck the previous owners did the correct fill during their oil changes, to include the Ford dealership I bought the Jeep from who I made change the oil at delivery and I am pretty sure they only used ford diesel synthetic 5w30 which I changed at 5k afterwards.
So the manufacturers recommended change interval is 10-12k miles, which I have met religiously and used top of the line synthetics to do so from different manufacturers. These were NOT 229.51 approved oils. The last 2 changes were castrol syntec edge, which the Mercedes website says meet the spec (but the bottle does not!).
Here's the thing: I finally ran into another WK Jeep diesel owner at a gas station and struck up a conversation with him...he told me that his DPF had gone at 25000 and that if I did not already have an extended warranty I should buy one because they are very expensive. So, a little alarm bell went off and I did some extensive research on the subject...turns out using oil that does not meet the MB spec is what makes these DPFs clog and fail.
I changed the oil in my jeep last week and the darn thing takes about 10.25 quarts, so at 10 bucks a quart this gets pretty expensive.
I finally found one vendor that carries the Mobil 1 ESP which is MB approved for my application. But again what is currently in the vehicle, which was changed a week a go, does not meet the MB spec.
My suspicion is that the other guy who had the jeep never paid that much attention to the oil in the first place, and he was probably using syn blend or Dino oil to begin with, because my DPF should have failed already. ...and like I said I have only used synthetics.
My question to the forum is how much different really is the top of the line synthetics that I have been using from the correct oil, and should I immediately change out the oil (again) :[ or should I wait and do it at 5k or the normal 10k?
I am inclined to believe since I haven't had a problem, it's no problem (using the oil I have been), and wait 5k to fix it. What say you all?
I have a 2007 WK diesel jeep I bought used in Nov 2010 with 25k miles.
It is extremely difficult to find oil that meets the manufacturers specs (MB 229.51). I have got to believe there is no way in heck the previous owners did the correct fill during their oil changes, to include the Ford dealership I bought the Jeep from who I made change the oil at delivery and I am pretty sure they only used ford diesel synthetic 5w30 which I changed at 5k afterwards.
So the manufacturers recommended change interval is 10-12k miles, which I have met religiously and used top of the line synthetics to do so from different manufacturers. These were NOT 229.51 approved oils. The last 2 changes were castrol syntec edge, which the Mercedes website says meet the spec (but the bottle does not!).
Here's the thing: I finally ran into another WK Jeep diesel owner at a gas station and struck up a conversation with him...he told me that his DPF had gone at 25000 and that if I did not already have an extended warranty I should buy one because they are very expensive. So, a little alarm bell went off and I did some extensive research on the subject...turns out using oil that does not meet the MB spec is what makes these DPFs clog and fail.
I changed the oil in my jeep last week and the darn thing takes about 10.25 quarts, so at 10 bucks a quart this gets pretty expensive.
I finally found one vendor that carries the Mobil 1 ESP which is MB approved for my application. But again what is currently in the vehicle, which was changed a week a go, does not meet the MB spec.
My suspicion is that the other guy who had the jeep never paid that much attention to the oil in the first place, and he was probably using syn blend or Dino oil to begin with, because my DPF should have failed already. ...and like I said I have only used synthetics.
My question to the forum is how much different really is the top of the line synthetics that I have been using from the correct oil, and should I immediately change out the oil (again) :[ or should I wait and do it at 5k or the normal 10k?
I am inclined to believe since I haven't had a problem, it's no problem (using the oil I have been), and wait 5k to fix it. What say you all?