Hi folks, what oil change interval is your car telling you to use? Is the default setting 20,000 km, as in Europe? I live in a very mild part of the country and drive mostly at low speed on the highway.
I am asking because of curiosity; I think I will change mine at 10,000 myself, or at half whatever the Assyst interval is going to be.
My car is telling me 20,000km as well. I don't care how good modern oil is, there was no way I was leaving it in there that long! Besides, for me 20,000 is 2 years of driving. I changed mine around 10,000.
I'm surprised the computer told me 20k as 90% of my driving is short trips (5 mintes to the morning train, etc).
I think mine said 20,000 at the beginning as well. Car is 13 months old now and done ~7400km. Computer shows ~12000 until service. Is it too much or too little? Should I use the car more?
Most people would recommend that you change the oil once a year minimum, even if the car doesn't otherwise need a service due to low km/year. For driving mainly consisting of short trips, the oil does not get hot enough to get the condensation out of the sump (especially for cars parked outside) and so changing it once a year after warming the engine compeltely up would do the trick.
I haven't got my B 200 yet, but when I do, I will probably be changing the oiil at 10,000 km (myself) too, in between "official" services. I keep my cars 15+ years, so I try to be nice to them....
Note that it takes some time from modern oil to have all the components activated. This results to higher engine wear for some time after the oil change. If you change the oil frequently, you have this higher wear period more frequently too. Changing engine oil too frequently may be the opposite from "being gently to the engine".
Search for posts, I believe from drivbivire and you should find very detailed info. My W221 CDI oil change period is approaching 30 000 km, have to change the oil a bit before that. Note also that in Europe the oil change interval is 2 years, if the mileage limit is not reached.
Sure driving conditions make a big difference but the FSS system should be able to adapt accordingly.
Well, I've got 363,000 km out of a Peugeot 405 110 HP gas engine, using 5000-10,000 km change intervals. The idea about oil lubricity improving with use/age seems absurd to me, to be frank.
I am concerned about the bits of swarf left over from the initial machining of the engine parts. It can't be good to have these 'swimming' about in the oil for thousands of miles.
The point is that the oil pump - by definition - cannot pump any oil anywhere inside the engine without firstly going through the oil filter. So the pressurised oil circuit galleries will not have any "swarf" pumped into them. It is impossible.
Splash lubricated parts (piston rings) are a different story.
Magnetic plugs were fitted to cars when they did not have proper oil filters (usually gauze mesh) and when manufacturing tolerances were generally crappy (well, on British cars anyway). Any modern engine will not have metal particluates inside it before final assembly.
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