Two Stroke Oil In the Diesel

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Country: South Africa
Vehicle: Pajero 3.2 DI-D GLS LWB 2007
Location: Randburg
Posts: 43
Joined: Sat Jul 06, 2019 1:58 pm

Re: Two Stroke Oil In the Diesel

Mon Oct 14, 2019 9:42 am

Thanks Roelf and Tony (and Kurt for the hint re lawnmower) for the insight supplied.
After reading all, I have reached the conclusion that there is no credible evidence to suggest that additives are necessaryto increase lubricity.
The only real life evidence we have, is that modern Diesel engined cars are quite plentiful in SA (I have no figures but see quite a lot on the roads) and there are no reports / incidents (Newspapers, Car magazines, etc etc) suggesting failures of Diesel engines due to problems with or absence of sufficient lubricity. I think that more diesel engines are "killed" by head-on collisions than from any other cause !!!
So, I will use 2SO only for my lawnmower should I decide one day to change over from EISHKOM to fossil fuel, due to escalating EISHKOM prices....
Thanks again guys for illuminating (pardon the pun) the Diesel lubricity situation.

Tony M
Country: South Africa
Vehicle: 2008 Pajero GLS LWB
Location: Cape Town
Posts: 40
Joined: Sat Oct 29, 2016 3:06 pm

Re: Two Stroke Oil In the Diesel

Mon Oct 14, 2019 10:44 am

Hi Obelix,

Pleasure. Glad to be of help.
My first job after varsity was running a laboratory for well known companies that undertook both final QA and evaluation on lube oils, fuels, greases etc as well as doing analysis on oils and fuels from maritime shipping tanks.
A long time ago ... However I still remember the essentials and the comprehensive testing that went into each product (especially aviation fuels).
The additives that were put into these systems were very comprehensive and based on a phenomenal amount of R&D in Europe - and we certainly advised against anyone adding 3rd party 'additives' to our products because they may well have had adverse effects on the additives already added.
Often people thought that some of the products we produced were 'deficient' because they never understood the principles behind the formulation.
One was a case of a well known engine oil that was deemed 'problematic' because, on draining, there was often a 'sludge' found in the oil residue when draining. The reality was that this particular oil had an additive that would absorb moisture from the engine oil and deposit it at the bottom of the sump - hence removing any water from the lubricant. In other words it was working 'as designed' - just that 'Joe Citizen' didn't understand this and thought it was a defect.


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