View Single Post
Old 02-08-2011, 07:32 PM
jesimmons jesimmons is offline
Officially Welcomed to the 'Fest
Location: Falls Church, Va
Join Date: Jan 2008
Posts: 2,008
Mein Auto: 2008 535i
Not entirely off topic... but... This water vapor contamination in the crankcase is yet another reason why BMW-recommended oil changes at 15,000 miles are rediculous. These vapors condense and form acidic compounds that can damage internal parts over time. All oils have additives to counteract these acids, but as they do their job to neutralize the acids, they become depleted. Modern top-line synthetic oils have no problems lubricating for 15K miles, but usually by that time, the acid reducing additives are long gone. Specially if you live in really cold winter climates and run the engine for short trips. If you only do short trips in the winter months and the temps are cold, an oil change in the spring is not a bad idea.
2008 535i Platinum Bronze | Black Dakota | Light Poplar | Steptronic | Premium | Multi-Contour | Logic7 | Sirius | iPod |

Last edited by jesimmons; 02-08-2011 at 07:33 PM.
Reply With Quote