Diesel Engine oil and Petrol's Engine oil different ?
03-31-2009, 06:17 AM
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Why Diesel Engine oil after run 5K km used so darkly as black in color compare with Petrol's Engine which only brown in color ? 
03-31-2009, 06:24 AM
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because in a diesel engine the oil is under much higher tollerences, and there are more additives to help with soot etc, intrinsicaly the oil is the same...its just the additives that makes the difference.
03-31-2009, 06:55 AM
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And I have been told that the oil in diesel cars gets dirty straight away so you cant actually tell from looking at the oil in a diesel car if its knackered or not. Can in a petrol ! #
Also, my question is , how many litres EXACTLY do you need to replace oil in a 525d ?
Thanks
Also, my question is , how many litres EXACTLY do you need to replace oil in a 525d ?
Thanks
03-31-2009, 11:23 AM
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If the oil is NOT black, it is not doing it's job. ie cleaning the engine. This applies to both diesel and petrol engines. Of course in a brand new engine there is not much to clean and the oil will stay clear longer. And this is just one of engine oils many tasks.
03-31-2009, 11:36 AM
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Originally Posted by nudda' post='831660' date='Mar 31 2009, 03:55 PM
And I have been told that the oil in diesel cars gets dirty straight away so you cant actually tell from looking at the oil in a diesel car if its knackered or not. Can in a petrol ! #
Also, my question is , how many litres EXACTLY do you need to replace oil in a 525d ?
Thanks
Also, my question is , how many litres EXACTLY do you need to replace oil in a 525d ?
Thanks
I belive you 525d should take about 7.5l same as my 530d.
01-17-2010, 07:08 AM
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Originally Posted by Dandle' post='831919' date='Apr 1 2009, 01:36 AM
Thats not true colour of the oil has nothing to do with how well its lubricating in either engine, both can have really dark oil that is in good condition still.
I belive you 525d should take about 7.5l same as my 530d.
I belive you 525d should take about 7.5l same as my 530d.
can u tell me whats the best Diesel Engine oil for 520d?
01-17-2010, 08:03 AM
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Originally Posted by Dandle' post='831919' date='Mar 31 2009, 02:36 PM
Thats not true colour of the oil has nothing to do with how well its lubricating in either engine, both can have really dark oil that is in good condition still.
I belive you 525d should take about 7.5l same as my 530d.
I belive you 525d should take about 7.5l same as my 530d.
01-17-2010, 08:40 AM
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Originally Posted by Bob525D' post='1092363' date='Jan 18 2010, 12:03 AM
My 04 525D 177bhp takes 8.3 litres of oil, the owners handbook tells you the capacities if you want to check.
01-17-2010, 09:24 AM
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Originally Posted by snkpkp' post='1092376' date='Jan 17 2010, 12:40 PM
can u use mobil 1 0W40 ?
