Oil change 75 Diesel

[SD1too]

Originally Posted by JMW

I may consider using a bottle of flushing oil, actual oil not flushing additive, as once run this will help to dilute the old oil left in the system.

As you've said that the new lubricating oil turns black straight away it's a sure sign that a dose of Comma Flush Out (not an additive ) is justified. By the sound of it you may need two doses but I've found that once used, provided that the oil change frequency is increased from the manufacturer's 15,000 miles, the new oil remains clean for a good period after a change. It's not expensive so why not give it a try?

Simon

[trikey]

Originally Posted by SD1too

As you've said that the new lubricating oil turns black straight away it's a sure sign that a dose of Comma Flush Out (not an additive ) is justified. By the sound of it you may need two doses but I've found that once used, provided that the oil change frequency is increased from the manufacturer's 15,000 miles, the new oil remains clean for a good period after a change. It's not expensive so why not give it a try?



Simon

It won't matter how many times you flush the Diesel engine Simon, the oil will go black instantly once it has circulated.

The diesel and the petrol are totally different beasts when it comes to keeping the oil clean.

Sent from my SM-G780G using Tapatalk

[Arctic]

I change my oil twice a year no matter what mileage i have done.

Changed it 2/1/22.
1

Always cleaning out the pot.
2

3

Changed it again 17/7/22.
4

Checked the level today.
5

Wiped dip stick clean.
6

7

Re-dipped it.
8

9

Oil on dip stick about where i like it.
10

As you can see oil clear after 7 days of use.
11

Will check it again midweek and maybe top it up with 200ml
12

Next change will be Jan 2023

[MSS]

Originally Posted by Mike Noc

If my experience is anything to go by you won't need flushing oil. My car started off as a company vehicle so serviced every 15k miles or so by a main dealer. I bought it when I left the company and carried on with using the official service schedule and service sheet.

It has now covered more than 427k miles and nothing lubricated by the oil has ever been replaced. Engine still runs sweet - well sweet as far as stone crushers go.

Mike - I would say your car is testament to the view that it is cars covering low mileage which require the more frequent oil changes and perhaps ultimately an engine oil flush. The thought of condensation contaminating the oil, which it invariably will after short journeys during winter, is not one I like the idea of to the point that all our cars are regularly given a longish drive during the winter months in order to raise the oil to normal running temperature for a period of time.

Originally Posted by Arctic

I change my oil twice a year no matter what mileage i have done.

Next change will be Jan 2023

Steve - I did exactly the same when the CDT was one of our daily cars. These days we don't have a daily need and cover very little mileage - less than £9k a year each for the mrs and myself. We only use the CDT and the XF diesels for longish journeys of 25 miles or more and rely on the petrol Corsa or Twintop for the more regular shorter trips to the supermarket etc. The annual mileage in my CDT is less than 6k and I have reverted to yearly oil changes at MOT time/service time.

[Mike Noc]

Yes I agree anything other than normal conditions and you should change the oil more frequently, which of course is covered in the official servicing schedule; 15k miles or annually, whichever comes first. And with repeated short distance driving (e.g. up to 8km) or stop/start driving or idling for long periods then change the oil every 7.5k miles or 6 months.

This particular engine does seem to be suited to keeping to the service schedule. Had I changed the oil at 7.5k intervals whilst covering the mileage I do, I would have carried out another 28 odd oil and filter changes for no benefit.








.