Quote:
Originally Posted by jakobnev
Why not go to 0W-40?
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these engines doesnt like it(like many older engines) they get louder and less smooth and it is more expensive
and it is the recomended oil
Quote:
Originally Posted by GreenTDI
Nice to see that the car is well cared for. 
What strikes me is that those good old engines require more oil and more frequent oil changes. Modern turbocharged common rail diesel engines last 30.000 km between oil changes with much less oil. Mine, for example, only has 4 liters. How can such a small amount still guarantee a purifying and lubricating effect after such a long period. Plus the fact that those downsized turbocharged engines are under more stress from higher pressure and faster moving parts.
They say: nothing as reliable as an old diesel engine, but may be also related to a shorter maintenance interval. |
modern engines doesn't last 30 000km between oil changes.... but they do last until warranty is out and ususally a little more, planned obsolescence
the synthetic engine oil is better nowadays than before so 15 000km and if you drive far even 20 000km is usually acceptable, but there is a reason why most modern engines are pretty much ready for the heap at only 250-350 000km (other than bad computer boxes)
the looser tolerances within these old engines is also a reason for shorter intervals(other than old oil technology) which is one of the reasons why they do last quite easily 750 000km
one of many reasons for larger oil volume is the cooling effect, instead of adding an expensive oilcooler they just added more oil, larger oilpan is not that expensive and as a side effect you get more oil wich helps dilute the stuff that gets cleaned from the engine and making oil last longer