Any one heard this before

Woody n Sue · Guru

Any one heard this before

Jetta7 · Veteran Member

No I haven't but I will interested in the response, as someone with all modern diesel vehicles some dpf and some not I would like to know how to safeguard my injectors etc.
Thanks for the article.

Kendo · Senior Member

Interesting reading. I'd like to know more.

rockylizard · Guru

Gday...

The addition of 2-stroke oil to modern diesel motors has been "debated" for some years.

Without comment or prejudice, I provide the following for information/consideration -

http://www.fuelexpert.co.za/2strokeoilindiesel.php

Cheers - John

Roving-Dutchy · Guru

The use of 2 stoke oil in diesel has been around for many years and there seems to be no positive proof that it is of any use. For piles of info on its use just Google 2 stroke in diesel.
Cheers
David

Mike196 · Senior Member

As well as the above info (it's been done to death) the local fuel suppliers are adamant there is enough of the correct additives in diesel to lube the pump on current diesel engines. However a small amount of the correct 2 stroke in the tank won't do any harm (it's designed to burn) and will add a small amount of extra lubrication for the pump. Having said that the Izusu engine in my Colorado has a design life of between 500,000 and 800,000Km before major rebuilding is required.

deverall11 · Guru

I use two stroke in the Landcruiser. Started of using Flaslube and realised that two stroke oil did the same thing albeit at a cheaper price. Only use mineral oil. Synthetic oil is OK but more difficult to keep mixed. The engine sound much quieter and there is a slight improvement on fuel consumption (1l/100km). The ratio is between 1:100 and 1:300. Recommend it to all that have a tug with diesel engine.
Spoke to a few truckies and they tell stories of using old sump oil in their fuel. Obviously old technology diesel engines.
Larry

Yabbietol · Veteran Member

Just a quick story about diesel additives.

A few years ago (+20) I filled up my naturally aspirated 2.4l (no Turbo) diesel Toyota Hilux at a generic truck stop on the Hume Highway (North of Goulburn) and very soon all my glow plugs stopped working and the engine was running very poorly, luckily I had a good mechanic whose son was a petroleum chemist that worked for a major oil company. We took a sample of the very dark looking fuel and sent it off to his son. The result came back that the fuel was about 10% very dirty sump oil and was almost certainly the cause of my mechanical problems. I was lucky the fuel filter caught most of the rubbish and the glow plugs were replaced and the injectors did not get too clogged up, an new filter, and a couple of tanks of clean fuel soon sorted out my engine. I was very lucky that I recognised problem and the changed fuel filter and (legally) dumped the remaining contaminated fuel.

It is legal to dilute diesel in cold climates to prevent engine wax build up (winter diesel), but it must be done with the correct clean additives and the amount of excise paid must be adjusted by the seller. The best thing about my fuel problem was I advised Customs and Excise of my concerns over the purity of the fuel and they investigated the truck stop and found that by dilution of the diesel fuel with 10% sump oil they were guilty of excise fraud. They were prosecuted and fined.

The lesson I have learnt is that cheap diesel is sometimes not cheap. Now I stick to brand name fuels and avoid generic service stations, it costs a bit more, but so far so good.

Woody n Sue · Guru

Well there you go I had never heard of doing this seems it's been around for years another one to put aside as perhaps a good idea that doesn't quite make the grade
Thanks everyone for your input

deverall11 · Guru

Woody n Sue wrote:
Well there you go I had never heard of doing this seems it's been around for years another one to put aside as perhaps a good idea that doesn't quite make the grade
Thanks everyone for your input

If you are interested, there is a long thread on the Landcruiser forum (LCOOL.ORG) regarding two stroke oil added to fuel. Would not put sump oil in a modern engine. I know of someone who put used transmission fluid in an old Landcruiser. I think it is mechanical injection.

Larry

WobblyNut · Senior Member

used to put a quart of oil in a naturally aspirated diesel truck a month,

put it in the r/hand tank when I was about to start a trip.

I have mates who still do it,they drop a litre in each tank (quad tanks)

I would only use a recognised brand (as I did in my old 3L Toyota Surf)

rockylizard · Guru

Gday...

Let's just call me naive ... but let me put the following for consideration.

Due to tightening of EU (and ultimately other countries) pollution control requirements, fuel companies needed to make their diesel fuel 'cleaner' - so they developed ultra-low-sulfur diesel (ULSD).

Keeping the scenario as brief as possible ... this reduced the 'lubricity' of the diesel fuel. The fuel companies therefore used 'additives' to overcome this.

One would think that the fuel companies would be extremely fearful of legal action if diesel engines were adversely affected (or damaged) by the use of this fuel.

Given the litigious nature of our world these days, it would not have taken very long for actions to be initiated against fuel companies - resulting in horrendously huge settlements - IF such damage began occurring. confuse

There have been no such litigations - successful or otherwise.

So, if the fuel companies are confident with the fuel they supply to the public for use in diesel engines, surely there is very limited value in adding 2-stroke oil in addition to the other proven additives inserted by the producers. cry

I am not a techo, engineer or physicist - just postulating my thoughts.

PS - I would be far more concerned about the very possible chance of getting water (or impurities) in the diesel from some suppliers/servos.

Cheers - John

Bruce and Bev · Guru

The major oil companies put a heap of additives into their diesel nowdays. I try to use Caltex Vertex as its probably the best one available, even through most comes through BP. The major oil companies like Caltex have their own additives to the fuel. With Caltex Vortex you will notice it is quite yellow - they add anti foaming, anti mould and a lube for all the motor parts - compare it to an unbranded diesel you might have to buy in the remote areas

It pays not avoid using these nn names fuel if possible. I carry 60 litres of additional Caltex to try and avoid the cheap and dirty diesel. No - I don't work for Caltex, but know someone who is a chemist with them.....

Hey Jim · Guru

Hi Bruce & Bev,

I to carry enough fuel to take me from Ceduna SA to Kalgoolie WA. and up the WA west coast to Exmouth.

Last year the Overlander Road house near the Denham Monkey Mia turn off had a major pump failure on the diesel tank. Their was a three and a half hour wait. the queue went on for ever going south. We stopped thinking a bad accident. only to be told of the real reason.

I carry Extra Fuel fillers as well.replacing 8 injectors would not be a cheap exercise.

Hey Jim & Lambie

Baz421 · Guru

rockylizard wrote:
Gday...
Let's just call me naive ... but let me put the following for consideration.
Due to tightening of EU (and ultimately other countries) pollution control requirements, fuel companies needed to make their diesel fuel 'cleaner' - so they developed ultra-low-sulfur diesel (ULSD).
Keeping the scenario as brief as possible ... this reduced the 'lubricity' of the diesel fuel. The fuel companies therefore used 'additives' to overcome this.
One would think that the fuel companies would be extremely fearful of legal action if diesel engines were adversely affected (or damaged) by the use of this fuel.
Given the litigious nature of our world these days, it would not have taken very long for actions to be initiated against fuel companies - resulting in horrendously huge settlements - IF such damage began occurring.
There have been no such litigations - successful or otherwise.
So, if the fuel companies are confident with the fuel they supply to the public for use in diesel engines, surely there is very limited value in adding 2-stroke oil in addition to the other proven additives inserted by the producers.
I am not a techo, engineer or physicist - just postulating my thoughts.
PS - I would be far more concerned about the very possible chance of getting water (or impurities) in the diesel from some suppliers/servos.
Cheers - John

I agree well said John.

Aus-Kiwi · Guru

Well it goes both ways.. If they said 2 stroke is a good idea.. Then they are neglecting lubrication .. Selling sub grade fuel.

I have always used water cooled engine 2 stroke in mech injected engines..
I also run water /meth kit due to no inter cooler .. Since fitting it has cleaned combustion chambers, glow plugs..
Starts much better . The water / meth kit is activated to come on at 8lb at more than 3/4 throttle .. Mainly comes on on long haul hills..

Izabarack · Guru

Some serious tests of fuel additives have shown that a dash of BioDiesel is the best for minimizing the wear that comes with low sulfur fuel. Much better than 2 Stroke. Anyone driving a diesel in NSW is already adding a dose of BioDiesel to their tank.

Iza