2.5dse Oil change, dirty old bugger

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eaglesalz

Member
Posts
98
Hello all, just changed oil, drained old, flushed, renew with 10w40 ran engine for a few minutes, than drained oil, fit new filter and fill with 10w40 again. Engine seems to be quieter as only had vehicle since march and don't know when it was last done. New oil seems to be quite thin and is black as the ace of spades, I know this will never be clear but I have seen oil SHPD E7 15W/40 ENGINE OIL. Would this be a good one to use as the engine has done 171k or am I being a bit over the top.
 
10w/40 should be fine. I don't know the spec of the stuff you're proposing but as long as it's A3/B3 spec that's fine. 4 litres of Carlube fully synthetic is £19 at Morisons. The oil goes black almost instantly, if you don't know its history doing an extra change inbetween the regular 5000 miles ones may give it a clean out.
 
Hello all, just changed oil, drained old, flushed, renew with 10w40 ran engine for a few minutes, than drained oil, fit new filter and fill with 10w40 again. Engine seems to be quieter as only had vehicle since march and don't know when it was last done. New oil seems to be quite thin and is black as the ace of spades, I know this will never be clear but I have seen oil SHPD E7 15W/40 ENGINE OIL. Would this be a good one to use as the engine has done 171k or am I being a bit over the top.

10W-40 should be fine if you have any doubts at that mileage a can of STP or Wynns might do some good.
 
10w/40 should be fine. I don't know the spec of the stuff you're proposing but as long as it's A3/B3 spec that's fine. 4 litres of Carlube fully synthetic is £19 at Morisons. The oil goes black almost instantly, if you don't know its history doing an extra change inbetween the regular 5000 miles ones may give it a clean out.

I think I will do just that, give it a couple of months running with new oil and then change again inc the filter as the filters are only a couple of pounds,
 
I can get 25ltrs of semi for 50 odd pounds but was wondering if I should get mineral as its pretty old or does is not really matter.
 
Magic stuff synthetic..

In the early 90s, when TWR were building race engines, they tried to break them in using Mobil Formula 1, and failed because it was so good at keeping the surfaces apart.

They had to use comma mineral or some such junk to get the engines run in, then switch to synthetic.

But I wouldn't change it every 5000 !
 
personally I would have fitted a new filter after you dropped the oil and put in the flushing oil, the flushing oil has just picked up the black stuff from the old filter


drop oil,
fit new filter and chuck cheap oil in
run for half an hour
drop oil
fit new filter again
put in oil im keeping
 
personally I would have fitted a new filter after you dropped the oil and put in the flushing oil, the flushing oil has just picked up the black stuff from the old filter


drop oil,
fit new filter and chuck cheap oil in
run for half an hour
drop oil
fit new filter again
put in oil im keeping

And it will still be as black as a stokers chuff. Diesels are like that always have been always will be.
 
And it will still be as black as a stokers chuff. Diesels are like that always have been always will be.

+1, suspended contaminates in the oil, filter removes larger particles whilst smaller ones are kept in suspension and removed when oil changed. You cannot drain all the old oil so the new oil will quickly darken.:D
 
worked on mine last time , aware that its a newer diesel of course

did it 2 months ago and is quite clean at the moment , will do again to try and get it golden then observe
 
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