My V40 1.9D produced excellent UOA results after 10,000 km and the Blackstones chap said the oil filter should be good for the 20,000 km service interval.
The insolubles were at 0.4 when the stated limit is 0.8 and I changed oil and filter, BUT next service with the same LM 5/40 Synthoil, I am thinking of saving money by not changing the Volvo oil filter and just changing the oil only. I will
then do another UOA after the final full service at 20,000 km.
This type of cheaper oil change procedure is used for older marine diesels that suffer from fuel contamination etc and I have used it to good effect before by doubling the number of oil changes and only using the recommended change interval for the filter.
My diesel is in very good condition(Touch wood)and I am changing the oil more often as the TBN fell from 9.6 to 4.7 over the 10,000 km and due to the horrific amount of stop-start driving I have to do, I want to stick to a half of natural virgin oil only figure and not play with additives at present until my UOA confirms my service schedule is good. In the longer term I plan to try Indian medicine (LM top up oil additives) at 10,000 km, but that will be a test for next year.
I do think the lower TBN figure of 1.0 published by Blackstones is pushing the green envelope and will stick with the half figure.
Anyone got an informed opinion about that less frequent oil filter changed idea?
It costs me 80 Euros to get the oil only changed and 120 to get the oil and filter changed, so I will save 20 Euros every oil change, which is more than the cost of a full UOA!
I would like to try a high performance extended life oil filter, BUT Volvo did not export the 115hp 1.9D to the USA and I have tried every site to no effect, so will have to wait for Mr Bosche to sell them in the EU next year.
The insolubles were at 0.4 when the stated limit is 0.8 and I changed oil and filter, BUT next service with the same LM 5/40 Synthoil, I am thinking of saving money by not changing the Volvo oil filter and just changing the oil only. I will
then do another UOA after the final full service at 20,000 km.
This type of cheaper oil change procedure is used for older marine diesels that suffer from fuel contamination etc and I have used it to good effect before by doubling the number of oil changes and only using the recommended change interval for the filter.
My diesel is in very good condition(Touch wood)and I am changing the oil more often as the TBN fell from 9.6 to 4.7 over the 10,000 km and due to the horrific amount of stop-start driving I have to do, I want to stick to a half of natural virgin oil only figure and not play with additives at present until my UOA confirms my service schedule is good. In the longer term I plan to try Indian medicine (LM top up oil additives) at 10,000 km, but that will be a test for next year.
I do think the lower TBN figure of 1.0 published by Blackstones is pushing the green envelope and will stick with the half figure.
Anyone got an informed opinion about that less frequent oil filter changed idea?
It costs me 80 Euros to get the oil only changed and 120 to get the oil and filter changed, so I will save 20 Euros every oil change, which is more than the cost of a full UOA!
I would like to try a high performance extended life oil filter, BUT Volvo did not export the 115hp 1.9D to the USA and I have tried every site to no effect, so will have to wait for Mr Bosche to sell them in the EU next year.
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