Diesel, 10ppm versus 50ppm

[j4ck455]

Is there a serious downside to using 10ppm instead of 50ppm in a CRDi?

I did a bit of searching before posting this, there is mention of reduced "lubricity" in another thread.

https://en.wikipedia.org/wiki/Ultra-low-sulfur_diesel

 

[agentrfr]

The low sulphur content diesel requires quite a lot of processing to get the sulphur out. As a result some of the oils in the fuel are removed too. The net result is that you need to add oil to your engine more often.

From an environmental point of view, ULSD is much better and also increases the life of the catalytic converter (sulphur poisoning on platinum is a major pain to deal with)

 

[j4ck455]

OK, so is it fair to say that one just needs to check and top up engine oil very frequently when using 10ppm?

Is it safe to assume that after one starts filling up with 10ppm, one can go back to using 50ppm on a semi-permanent basis with no ill effects?

 

[HavocXphere]

The low sulphur content diesel requires quite a lot of processing to get the sulphur out. As a result some of the oils in the fuel are removed too. The net result is that you need to add oil to your engine more often.

Source for more oil claim?

Closest I can find is this :

ULSD has a lower energy content due to the heavy processing required to remove large amounts of sulfur from oil, leading to (1 to 2%) lower fuel economy. Using it requires more costly oil.

 

[agentrfr]

OK, so is it fair to say that one just needs to check and top up engine oil very frequently when using 10ppm?

Is it safe to assume that after one starts filling up with 10ppm, one can go back to using 50ppm on a semi-permanent basis with no ill effects?

Yeah, you can easily swap between the two regularly

Source for more oil claim?

Closest I can find is this :

I mean that you need to make sure that your oil levels are kept in check. It does consume *slightly* more oil as there's a tad more engine friction, however, the greater volume of oil used is marginal.

Discussion of lubricating properties of ULSD specific engine lubricating oil: http://waste360.com/mag/waste_truck_engine_emissions
TLDR version: Oil needs to be more slippery, hence more expensive to purchase - you also really don't want to run out of oil when burning ULSD compared to normal diesel (not that you ever want to run without diesel, but you know what I mean)

 

[justplain]

Any further word on 10ppm being available in the Western Cape?

 

[justplain]

Any further word on 10ppm being available in the Western Cape?