Search results

Agreed! My takeaways from two 15k OCIs is that the filter's o-rings start becoming brittle after ~15k. Personally I'd be comfortable changing the oil every 20k mi but changing the filter every 10k (factory interval). That said, I think I'll go back to changing the oil and filter every 10k since...

The 10k sample was extracted through the dipstick while the 15k sample was taken as the oil was draining from the sump. I attribute the inconsistencies in the results to the difference in sampling methods.

Thanks for your feedback! Yes, the increase in Fe wear rate caught my eye as well...

2014 Mercedes-Benz E250 Bluetec 4Matic (OM651 2.1L I-4 twin-turbo diesel) Pennzoil Platinum Euro L 5W-30 OCI MPG in line with lifetime average (35.7 MPG). No makeup oil added. Oil sampled (not changed) at 10,083 mi and changed at 15,186 mi.

Looks like attachments in posts have disappeared. Re-attaching here unless there's a better way.

Let's say an oil has a published Noack value of 6% (tested on a virgin sample). At the end of the oil's service interval, say 20,000 miles, would the used oil's Noack value still be 6%? Higher? Lower? We know that most, if not all, lubricant properties change during use. I haven't see any...

Has anybody seen literature or numbers discussing how an oil's evaporation rate changes over the course of its service life?

Originally Posted by andreigbs Great engine IMO, and a great oil that's easily accessible as well as excellent value. Our Bluetec is pushing past 122K miles and I expect another 120K out of it. Currently running PP Euro L in our other diesel but may just convert both to PP Euro L for...

2014 Mercedes-Benz E250 Bluetec 4Matic (OM651 2.1L I-4 twin-turbo diesel) Pennzoil Platinum Euro L 5W-30 No makeup oil added, 34.3 MPG (vs. 35.7 MPG lifetime), 3rd run on this oil type. Pretty floored with this engine's first UOA at 117k mi!

This stuff looks pretty robust on paper! Any anecdotal experience with the Duron lineup (PDS below)? Who might stock the lineup in British Columbia, particularly the UHP E6 blends?

Shell Helix Ultra AG 5W-30 meets MB 229.51 spec, which is appropriate for the OM651 engine.

Looking good! I think I'm reading this report correctly - 9,734 miles on this oil and 43,834 miles on the car? True we didn't get the C-class wagon in the US, but we did get the OM651 for a few years in other models. I love mine!