Oil life prea scazut km

Da, trebuie sa schimbi uleiul si filtrul , in functie de cate porniri -opriri ,regimul de rulare urban ,extraurban , temperatura motor la oprire etc. așa este calculatã uzura uleiului de catre calculatorul de bord.

Esti sigur ca a fost resetat?! Ce ulei ai pus si cum arata acum (pe joja-nivelul si calitatea)? Eu unul nu am incredere in valorile de pe oil life... daca stie cineva exact, sa ne explice cum se calculeaza...

Sau aici:

The GM Oil Life Monitor System is not a mileage counter. It is actually a computer
based software algorithm that determines when to change oil based on engine operating
conditions. There is no actual oil condition sensor. Rather, the computer continuously
monitors engine-operating conditions to determine when to change oil. Over the years,
millions of test miles have been accumulated to calibrate the system for a variety of
vehicles. The system was first introduced in 1988 and is now on more than 10 million
GM vehicles.

The beauty of the GM Oil Life Monitor System is that it will automatically adjust the oil
change interval based engine characteristics, driving habits and the climate in which the
vehicle is operated. For instance, mild highway driving in a warm climate will maximize
the interval between oil changes. Depending on the vehicle, this could be in excess of
7000 miles and as high as 12,000 miles. On the other hand, short trip driving in cold a
climate may limit the oil change to 3000 miles or less. In general, most people that drive
a combination of city and highway schedules find that the GM Oil Life Monitor System
will indicate an oil change every 7500 to 8500 miles.

Sursa: http://assets.cobaltnitra.c...010145efa6b30.pdf

Algorithm-based oil indicators measure lots of factors and then plug the resulting numbers into a formula. Based on the answer to this complex, ongoing math problem, the indicator display will tell you whether the oil is OK, is close to requiring replacement or needs replacing immediately.

Interestingly, with these types of indicators, there are no sensors to detect the quality of the oil itself. Instead they combine data on how many miles you've driven, the temperature variations during that time and data about how much work the engine has performed. Typically, the indicator (monitoring system) will receive such data from the powertrain control module, or PCM, which is the main on-board computer. Engineers have figured out a fairly accurate and reliable way to calculate the remaining oil life this way, without having to actually sample the oil.

Direct measurement oil life indicators measure the condition of the oil -- the opposite approach to the system described above. This method uses sensors to sample the oil and determine its remaining life based on any of the following:

Conductivity -- how easily electric current passes through the oil (typically, the lower the electrical resistance, the more contaminants are in the oil)
Mechanical properties -- piezoelectric sensors can tell how thick the oil is by the force feedback it gives when sloshing around
Soot concentration -- dirty oil's days are definitely numbered
Presence of water -- water is an impurity in oil, since it hampers the oil's effectiveness and can corrode metal surfaces
Different oil monitoring system manufacturers may use a combination of these measurement techniques. Typically, the information will display as a digital readout on the vehicle's instrument cluster. The display can feature a green, yellow or red-style status bar, with red indicating the "change oil now" zone; it could be a percentage, displaying a text message, something like "40 Percent Oil Life Remaining," or it might just be a light or a message that just comes on automatically when it's time for an oil change.

Sursa: http://auto.howstuffworks.c...ife-indicator.htm

Explicatia duce la o concluzie clara. Nu cumparati Insignia/Astra etc diesel ca sa mergeti 4 km pana la serviciu. Nu va bucurati de masina, chinuiti motorul si nici nu iesiti bine la bani.

Intreb si eu , dar dupa resetare conform procedurii ai vazut cu ochii tai concret ca aparea oil life 99 % si pe urma a inceput sa scada ?