Quote:
Originally Posted by xueju1121
Yes, and thats why we should change oil, but not at 3k or 5k. This is 2016 after all.
|
Just last year BMW had to do a "customer care package" for anyone that owns one of their vehicles that contains an N63 variant engine, partly because they pushed engine oil changes too far out. It was well documented that part of their engine failures were attributed to oil issues related to pushing oil changes to be too infrequent. Timing chains became fatigued and stretched, and, in some cases, the piston rods would sheer off and puncture the engines. At the time, BMW said 15k miles was perfectly safe, and worked well for their engines, and that oil technology was at the point it could substantiate these infrequent oil changes. They were wrong, horribly wrong. They have since downgraded maintenance for those engines to be 10k miles. Since the S63TU engines are based, in many ways, off of the N63 engines, but are pushed to even further limits in the call for more horsepower and torque, I am not willing to take the chance that BMW is again horrifically wrong in stating that 10k miles is perfectly safe and adequate for their engines. Oil is recycled now, as are most car fluids, so there's no harm to the environment to do more frequent oil changes. I'd rather pay $100-$150 per year extra in a possibly superfluous oil change, than shell out $40k+ on a new S63TU engine, if BMW is, once again, wrong in their estimations. What works on paper, or in a lab, oftentimes does not equate to how things work in the real world.