Originally Posted By: TheRuss
Hi folks,
I recently bought a brand new car (N55 equipped BMW), and wishing to keep it in the best shape possible I dumped the factory fill of oil after around 30 miles, in an effort to get rid of any debris in there from the initial bedding-in of the piston rings.
Only now, after having done that am I wondering whether I've inadvertently dumped some break-in additives with the factory fill, or whether these generally aren't used any more, due to BMW's 20,000 mile/2 year OCIs and smaller tolerances in modern engines? And therefore whether it's worth getting a break-in additive to put in myself, or whether that will do more harm than good.
I also plan to change the oil again at 1200miles, at the end of the period that BMW say to keep RPMS below around 4000-4500, which presumably is the full break in period for everything to bed in.
After that, from what I've read here and on other forums I was thinking of going to a 7500mile OCI, as seemingly BMW's own 20,000 mile/2 year OCI is too much even for the best current oils, due to high fuel dilution and high oil temps in this engine.
Any help/advice anyone could give would be greatly appreciated.
Many thanks
Russ
Follow your owner's manual on motor oil type (dino or synthetic), weight, quantity and oil change interval. Nothing else is required. Congrats on your new ride.