Some history… The vehicle is a 2013 BMW 335i xDrive. I purchased it Certified Pre-Owned in 09/2015 with 19,378 miles. The original owner purchased it in 04/2013. The first oil change was done at 10,806 miles in 06/2014. The second oil change was done 8,545 miles later at 19,351 in 08/2015, just prior to my purchase of the vehicle. Both of those were performed by the Dealer and I imagine they used Genuine BMW High Performance Full Synthetic 5W-30.
This is my first BMW and, while not feeling entirely comfortable doing so, I did what the Dealer told me to do… I ran it until the Condition Based Service (CBS) computer told me it was time for an oil and filter change. That didn’t come until 36,241 miles which means I ran it for 16,890 miles. That’s the sample that was previously tested and posted here.
Although the analysis for that extended interval was pretty good, now that the factory warranty has expired and maintenance is no longer included, I decided to shorten this interval to 10,000 miles. (I believe that is what BMW pulled their recommendation back to anyway, starting with the 2014 model year which is the same F30 generation and has the same engine.) I took the sample at 46,414 miles which means I ran it for 10,173 miles.
Current fill… I performed the oil and filter change myself using 7 quarts of Castrol Edge 0W-40 (A3/B4 European Formula, BMW Longlife-01 Approved) and a K&N PS-7014 Pro Series cartridge filter. I plan to run it for 10,000 miles.
This is my first BMW and, while not feeling entirely comfortable doing so, I did what the Dealer told me to do… I ran it until the Condition Based Service (CBS) computer told me it was time for an oil and filter change. That didn’t come until 36,241 miles which means I ran it for 16,890 miles. That’s the sample that was previously tested and posted here.
Although the analysis for that extended interval was pretty good, now that the factory warranty has expired and maintenance is no longer included, I decided to shorten this interval to 10,000 miles. (I believe that is what BMW pulled their recommendation back to anyway, starting with the 2014 model year which is the same F30 generation and has the same engine.) I took the sample at 46,414 miles which means I ran it for 10,173 miles.
Current fill… I performed the oil and filter change myself using 7 quarts of Castrol Edge 0W-40 (A3/B4 European Formula, BMW Longlife-01 Approved) and a K&N PS-7014 Pro Series cartridge filter. I plan to run it for 10,000 miles.