Thread: Fuel additive for TD5

Originally Posted by ZippoParis

"These negative properties of the ultra pure diesel fuel are usually overcome by adding special substances to improve their lubricating properties, electric conductivity, and oxidation stability and to eliminate their corrosion aggressiveness."

So, is the "special substances" 2 stroke oil???

The "special" substances are a range of products added by refineries to improve lubricity without harming cetane rating.

The difference is the additives the refineries add have been subject to a battery of tests to ensure suitability. There is no guarantee that your homebrew 2-stroke (or other additives) won't do more harm than good.

Bush65 commented in another thread, that many injector pumps (e.g. ISUZU) are lubricated by engine oil rather than fuel. So adding a lubricant to the fuel won't make a difference to IP longevity.

The main claim of the proponents of 2-stroke, is that the engine "sounds smoother". How is better lubrication of the pump(s) and injectors supposted to be "heard"??? If the engine runs smoother with 2-stroke added, it sounds more like a moderation of the combustion process, which may or may not be a good thing.

Case in point, a friend converted his isuzu diesel to run on WVO. He didn't realise that he had low compression on one cylinder. The result, his engine idles smoothly (all 4 cylinders) on WVO, but roughly (3 cylinders) on Diesel. You could use that to say that it is much better for the engine to run it on WVO, but we know that is not necessarily the case, There are lots of potential downfalls of using straight WVO.

After ploughing thru all this goods guts info on fuel additives I added the recommended amount of chemtec to a full tank.

reduced the "rattle" and general engine noise quite considerably and feels a little more sprightly as well.

Can't hurt right?

cheers

ok fair enough finally some research indicating that there are some additives to increase lubricity...

however...

Originally Posted by the quote isuzurover quoted

Diesel pumps were lubricated by the fuel itself and rapid failure was observed as the natural boundary lubricants were removed from the fuel along with the sulfur. These pumps relied on the fuel for lubrication, and the failures were linked directly to the reduced lubricity of low sulfur fuels

since the td5 doesnt have an injector pump.....

neither of the compounds listed(the BL and the EL) as being tested are 2 stroke oil or any other commercially available additive (that I've been able to find, which doesnt mean its not in some of them) and if I've read correctly and found the right info an Alcohol based additive and a derivitive of a type of biodiesel (the wood fungus one I think but Im not betting the farm on that).

just from the added NOX of 4.6% on the BL20 mix if thats an after after treatment (cat/DPF) figure then its probably enough to blow some engines past their EUROX requirements for emmissions (although NOT a TD5 in AUS as they are only required to meet EURO II/III)

Lots of interesting stuff
I understood that the development of the TD5 injectors was done using kerosine.
This was done to give the worst case scenario.
On that basis I don't think I could be stuffed metering out two stroke oil to get the limited benefit.
That being said its your engine you do what you want

Originally Posted by goingbush

DITTO

I add 1/3 litre marine 2 stroke (non synthetic) per 100 litres diesel at every fill.
my 80 series 1HDT broke at 540,000 klm and it was a non fuel related failure. After an oil change it took about 2000 klm for the oil to start going black, where my work truck (no 2 stroke oil) went black within 100klm after an oil change. Same now with the TD5 it stays nice & golden brown for about 1500 klm. Nothing is going to stop me adding 2 stroke oil.

If you stop using 2 stroke it takes a couple of fills to get it out of the system & you think nothing changed until you add it again & get an instant decrease in rattle at idle & engine cruise noise.

You cannot compare the oil colour in a TD5 to ANY jap stuff.Jap engines burn dirty,the TD5 burns much cleaner and has an additional centrifuge oil filter.
My D2 TD5 has 263000ks on it,its been on synthetic oil since new,I change oil at 20000ks,guess what,my oil remains clean for 20000ks,I can wipe my dipstick clean without getting my fingers dirty,even after 20000ks.The same goes for my TD5 Defender,it has 160000ks on it.Yes I have owened dirty Jap diesels and operate earthmoving equipment for a living.Two stroke oil wont clean your sump oil,NEVER.Jap diesels glaze very easily,its what turns your sump oil black.The Cost Effective Maintence products mentioned in an earlier post work VERY WELL on Jap diesels to help with the black oil/glazing issue.The owner markets them to do so,I used the products with great results on my Mitsy Triton 4d56 diesel and a Toyota 1HZ work ute,they are not required on a healthy TD5.
The ONLY fuel treatment both my TD5s,and my boat get are the occasional dose of diesel power or simalar,ONLY to prevent algeal growths and any water in the fuel.
Andrew

400cc of Snake Oil will quiet a diesel down too...

What a pile of crap this thread is...

Different weather, temperature, humidity will also change the economy and sound of a diesel engine...

Ahhhh...

Thud.....

You know what - stick a 200:1 ratio of 2 stroke to your tank of fuel....
Works wonders... Helps economy... Reduces NVH...
And as an added bonus - makes those who believe it works feel righteous and justified.

So I beg of all of you... Use 2 stroke in your fuel... The righteous have spoken.


"Where the Desert meets the Sea"
'Did I mention some great 4WDriving is just 5 minutes from home?'

Originally Posted by Tombie

400cc of Snake Oil will quiet a diesel down too...

What a pile of crap this thread is...

Different weather, temperature, humidity will also change the economy and sound of a diesel engine...

Ahhhh...

Thud.....

You know what - stick a 200:1 ratio of 2 stroke to your tank of fuel....
Works wonders... Helps economy... Reduces NVH...
And as an added bonus - makes those who believe it works feel righteous and justified.

So I beg of all of you... Use 2 stroke in your fuel... The righteous have spoken.


"Where the Desert meets the Sea"
'Did I mention some great 4WDriving is just 5 minutes from home?'

I wonder if Lizzard Milk works better than snake oil Tombie
Andrew

We have been using PROMA DT5 Fuel system cleaner in our workshop
for the past 10 years and have found it to be very effective.
1 Litre bottle costs about $30.00 and it's enough for 1000 litres of diesel.