I've noticed that alot of newer engines run hot.Could it be oil cooking in the motor?Surely diesel oil should help.

This simple lesson here is..
 

..Throw the MB recommended service guidelines out with tonight's trash. On any "modern" (FSS and post-FSS era) Benz, I change at 7500. Trans at 30, just like any other Benz of yore.

If it was up to me I would change the FSS to be an engine hour meter. It would be much more useful for us who maintain our own vehicles.

How many hours would you set up as your change interval?

I've got a Kubota tractor that the book calls for oil/filter every 200 hours. I'm running Mobile 1 so I could possible extend it out but I doubt if I will. See post 6 of this thread

603 thread

for an example of running Mobile 1 and changing about every 10k miles.

I calculate that I average around 150 hours between oil changes based on 5000K mile oil changes. If I would extend my oil changes to 7500K mile intervals then this would correspond to about 225 hours. 200 hours sound like a good number.

My gas generator I change the oil every two years since it gets about 2 hours of run-time per year (since I have a generator I rarely get a power outage).

7500000 mile intervals is longer than about 225 hours:eek:.

My bad, I suppose if Mercedes were capable of going Mach 10 this might be doable.

Yes, not to sound "commercial" . . try Auto-RX . . . it does work. I used it in my engine with 95K miles that used dino oil. Cleaned it like new!
Direct link here.

Check out this '93 Nissan here.

LOL

I agree 100% with Jim F. Auto-RX is wonderful stuff. It slowly dissolves the crud but does not break it loose. You change your oil and filter and put in the necessary amount of the product. After 1500 miles you change the filter. Then at 3000 miles you change the filter and oil. I used it on two of my Benz. Had reason for a head gasket on the CE and we were amazed at how clean the innards were.
Anziani
'93 300CE 205K
'95 E420 123K

Here is some info on engine sludge from Mobil's website:

Sludge Protection | Mobil 1 Cleans with One Oil Change

I've not tried Auto-RX but know that the VW crowd seems to hold it in high regard. The VW 1.8T has sludge problems that may be worse than the Mercedes 112/113.

.......now drop the oil pan and clean out the oil pick up screen. This example is by no means as bad as many.

I suggest you don't dislodge anything without taking off the pan though. A plugged pick up screen will kill it quicker than that sludge.



.

OK I see now, I was wondering why there was only one cam sprocket. I seem to have mistaken the auxiliary rocker shaft as a camshaft.

The three rockers per cylinder is still strange, as is the SOHC design on an S-Class. Some quick research explained it all. Here I was thinking the car had an evolution of the M119 but instead has what seems to be a cheaper, more value-engineered design. Food for thought. Not everything improves with time apparently.

I think the three valve per cyl arrangement is a pretty effective design.