When we bought our Volvo 2 years ago I took the decision, based on the various dpf regeneration threads, to use 0W-40 oil and this year I have also started using the new low ash version of this oil.
I have not had the software update done but don't completely fill the sump, I top up with 6L at the oil change. So far the oil level has changed very little if at all over the last 3 10,000 mile oil changes. Of course it may be topping up with diesel as fast as it is burning it! This year I have decided to extend the oil change interval to annually for economic reasons, that should equate to about 15,000 miles.
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Simon.
2006 MY V70 SE D5 AWD 7 seat.
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