http://autos.yahoo.com/articles/aut...zI3MTYxNDkEc2VjA2ZwLXRvZGF5BHNsawMzMDAwLW9pbA-- KEYNOTE: Now, Daimler AG has developed a more direct and precise way to monitor oil quality directly on board a vehicle. Daimler uses a special sensor integrated into the oil circuit to monitor engine oil directly. Oil doesn’t wear out, but rather dirt and impurities cause oil to lose its ability to lubricate properly, dictating the need for a change. Daimler uses the oil’s “permittivity,†that is, the ability to polarize in response to the electric field. If the engine oil is contaminated by water or soot particles, it polarizes to a greater extent and its permittivity increases. To evaluate the quality of the oil, permittivity is measured by applying an AC potential between the interior and exterior pipes of an oil-filled sensor to determine how well the oil transmits the applied electric field. Because not all impurities can be measured with sufficient precision via the electric field method, Daimler also measures the oil’s viscosity to detect any fuel that may have seeped into the oil. Daimler researchers measure viscosity while the vehicle is in motion by observing the oil's side-to-side motion in the oil sump. The slower the oil moves, the higher its viscosity. This movement is registered by a sensor and the viscosity is calculated on this basis. A single sensor, along with the information already monitored by on-board computers, is sufficient to determine the various parameters of the engine oil. Daimler will likely use the technology first on its commercial vehicles. Here, large oil reservoirs mean larger quantities of oil can be saved. Plus, a predicted 25 percent increase between service intervals and reduced downtime will be of interest to fleets, and thus justify the added cost of installation.
I was just reading bout oil change intervals on Yahoo today, seems to be a hot topic these days with high oil prices and an excess of old oil that's no good for the environment. Finally my dealer is gonna have to stop recommending I change my oil every 1000 miles!! Idiots.
what is the "recommended" interval for changing our oil with Mobile 1? is it 3k miles? or 5k miles? (im not asking when you change it...im asking what is "recommended" lol)
Recommended for our cars is 3k. That's what my extended service plan covers and that's what I have them do. BlackStone Lab analysis says I could go a lot longer.
again....not the question lol...thats why i said that.... even for the Mobile Synthetic? I thought it was 5k?....
