Two stroke oil added to a diesel fill

Liamalone

Does anyone do this?

A friend has started this, he adds about 50ml to a full tank (60L), says that it helps lube the diesel pump and does it because the diesel you get now can vary from pump to pump with regard to its' lubricity now that sulphur has been cut out or something.

Thoughts?

Edit: can't be any old two stroke, it has to be low ash content, just in case anyone jumps in at the deep end lol

Bing_IRL

Can't be good for a car with a DPF fitted? Surely it would clog it up?

demanufactured

Pointless

s15r330

Less than 0.1% would it even make a difference?!

K.Flyer

When sitting in the waiting room for the DOE on the van last year I got chatting with this chap who told me about the extra mpg he was getting by adding two stroke oil to his fill up.
I had never heard of it before and to be honest I was / am still a bit sceptical about it.
Anyway, his van (I think it was a 08 09 ish land cruiser iirc) was finished just ahead of mine and he was failed on emissions. He asks the tester how badly out was it and the tester said it was a fair bit off. So he explains about the two stroke, to which the tester rolled his eyes and told him to stop using it until he had done a few fills until he went back for the re-test.
Funnily enough my vehicle's emissions were spot on (130, 000 miles) and I mainly use the cheap D4 fuels and a local Applegreen for Diesel and no additives.
So personally cannot see the benefits of adding two stroke.

Seamus1964

I'm practising this method in about two years now. Adding 250ml mineral 2 stroke per full tank (90L) . (I doubt if 50ml per 60L diesel would be enough)
I am not sure if it increases mileage or decreases engine noise but definitely adding mineral 2 stroke lubricates engine diesel pump and injectors.

I got this idea from Australian jeep forums where people doing so and swear on it.
5 Litre mineral oil cost in local motor factors 30 euro and lasts me about one year.

Passed DOE twice with no problems while mineral oil was in tank mixed with diesel.
Most likely that lad who did not pass his test had engine problems in the first place.

3.2 Pajero with 190 000 miles

CJhaughey

I use 200ml to a ~50l fill. 250:1 in an old school Diesel with 310k Miles
Never had problems with smoke in any test.
I think servicing with fresh oil on time is more important but I do feel low Sulphur diesel is lacking lubricity for older diesels especially.
I know that the Biodiesel component of 5% is supposed to lubricate as well or better than Sulphur but I just don't trust it to provide the same level of Lubrication.
Bear in mind that Injection pumps and injectors are still mechanical devices, all mechanical contact within machinery benefits from some form of lubrication.
Outboards commonly run very lean oil/petrol mixes up to 200:1 and they depend on 2 stroke oil for full lubrication so my reasoning is any additional lubrication is only beneficial.
I do use JASO FC semi-synth oil as well which has strong anti-carbon fouling properties for two stroke exhaust ports.
YMMV.

Seamus1964

CJhaughey wrote: »

I think servicing with fresh oil on time is more important but I do feel low Sulphur diesel is lacking lubricity for older diesels especially

+1

rex-x

Been doing it for years, has to be mineral only. Not synthetic, really good for the newer common rails, quietens them down nicely and prolong s the HP pump life, particularly when tuning heavily. 200ml per tank

Special Circumstances

If you look around some sites, BITOG being one I think, you'll even see people extolling the virtues of adding it to petrol. "Ashless" high spec marine 2 stroke only though - TC W3. Not sure where this fits in v "mineral only".

Never tried it. Don't shoot the messenger.

Liamalone

s15r330 wrote: »

Less than 0.1% would it even make a difference?!

I may have got the amount wrong tbh

CJhaughey wrote: »

I know that the Biodiesel component of 5% is supposed to lubricate as well or better than Sulphur but I just don't trust it to provide the same level of Lubrication.

He mentioned this, saying that some crowd did tests on diesel from different places and the percentage of Biodiesel varied from as little as 2% up to 10%, this is why he's adding the two stroke.
He also mentioned, being a farmer, something about John Deere recommending that Stanadyne fuel additive is used on their tractors for the same reason.

CJhaughey

There has to be some difference in Diesel lubricity, I know one manufacturer of medium speed marine diesels used to say their injectors were good for the life of the engine.
Now they have a 2 year service interval. Either they are made cheaper and worse (possibly) or the lubrication provided by the fuel is not the same.
I can tell the difference between my car engine running on straight diesel and on premix, it sounds and performs differently.

Maybe he's afraid that his garage is selling him laundered diesel.

Toyotafanboi

what's the theory behind 2 stroke making the engine quieter? hard to believe that that would be at all noticeable.

tomwaterford

Toyotafanboi wrote: »

what's the theory behind 2 stroke making the engine quieter? hard to believe that that would be at all noticeable.

I think it's to provide lunrication to pumps etc...can't see how it would quieten an engine to any real degree



Though we were always told 2stroke is 100% combustsble

Toyotafanboi

tomwaterford wrote: »

I think it's to provide lunrication to pumps etc...can't see how it would quieten an engine to any real degree



Though we were always told 2stroke is 100% combustsble

i would have thought any minor silencing that was acquired at the fuel pump or injectors would be absolutely drowned out by the compression/ combustion noise.

mickdw

I hope the 2 stroke is not turning the fuel in the tank too red or green. Would be hard to convince the customs man that you were running two stroke oil as opposed to a mix of agricultural diesel.

_Brian

I've tried this for a few fillls in my xtrail 2.2dci.
TBH I noticed no real difference in mpg or noise, but to be honest the xtrail engine is a noisy brute anyway.

I do find though that it runs best on diesel from Applegreen. I've ised local fuel stations and am never happy with performance nor MPG. Each time I go back to Applegreen diesel the jeep rims better and does more mpg.

Dozer Dave

Alot of lads added 2 stroke to the fill but they would be burning the wine.

Dozer Dave

CJhaughey wrote: »

I think servicing with fresh oil on time is more important but I do feel low Sulphur diesel is lacking lubricity for older diesels especially.

You are talking about two different things altogether here, how does servicing the engine have any relation to lubrication in an ip or injectors? You are wasting two stroke in whatever vehicle you drive, older diesels injector pumps were bomb proof.

joe912

mickdw wrote: »

I hope the 2 stroke is not turning the fuel in the tank too red or green. Would be hard to convince the customs man that you were running two stroke oil as opposed to a mix of agricultural diesel.

the customs don't charge you for having red or green diesel. they check to see if it is marked gas oil which this presuming you were using white, would not be.

CJhaughey

Toyotafanboi wrote: »

what's the theory behind 2 stroke making the engine quieter? hard to believe that that would be at all noticeable.

Think about an Injection pump, all the little moving parts inside it.
Ever spin a bearing dry and then add a tiny drop of oil into the race and then spin it again and listen closely?
Think about an Injector and the moving parts inside that.
Oil is oil and lubrication benefits any mechanical device.
I am not saying that it will benefit all engines, but I do know that in mine it makes a noticeable difference.

Toyotafanboi

CJhaughey wrote: »

Think about an Injection pump, all the little moving parts inside it.
Ever spin a bearing dry and then add a tiny drop of oil into the race and then spin it again and listen closely?
Think about an Injector and the moving parts inside that.
Oil is oil and lubrication benefits any mechanical device.
I am not saying that it will benefit all engines, but I do know that in mine it makes a noticeable difference.

i'm saying this in a non condescending way, even though it doesn't sound it; but anyone who claims that they can hear the difference in an old diesel running on plain diesel, vs an oil diesel running on diesel with a splash of 2 stroke is waffling, you'd do well to hear yourself think over the clatter, never mind hear a negligibly better lubricated bearing.

i understand the concept, but i think any audible results might be placebo. maybe for internal longevity it might make some small difference, which is all well and good

Dozer Dave

Toyotafanboi wrote: »

maybe for internal longevity it might make some small difference, which is all well and good

Wont add life imo, when old ip can run on kerosene all day long adding two stroke to diesel is only throwing apples into an orchard.

Seamus1964

Dozer Dave wrote: »

When old ip can run on kerosene all day long ..

Can it now ?

Dozer Dave

Seamus1964 wrote: »

Can it now ?

It sure can.

jimgoose

Special Circumstances wrote: »

If you look around some sites, BITOG being one I think, you'll even see people extolling the virtues of adding it to petrol. "Ashless" high spec marine 2 stroke only though - TC W3. Not sure where this fits in v "mineral only".

Never tried it. Don't shoot the messenger.

A lot of the American Jag guys swear by NMMA TC-W3 2T oil, in very small concentrations. It's not so much the oil as the magic additive package in the marine stuff.

debabyjesus

http://www.dieselplace.com/forum/76-speciality-forums/64-maintenance-fluids/177728-lubricity-additive-study-results.html#/forumsite/20625/topics/177728?page=1

Biodiesel came out on top in this well known lubricity additive test. Stanadyne did ok. Does anyone know where in ireland sells the stanadyne lubricity additive? I know the performance one is easy got but having a tough time finding the lubricity one, even in the uk.

Where's yer man derry gone?? He was a good laugh on these type of threads.

Dozer Dave

CJhaughey wrote: »

Think about an Injection pump, all the little moving parts inside it.
Ever spin a bearing dry and then add a tiny drop of oil into the race and then spin it again and listen closely?
Think about an Injector and the moving parts inside that.
Oil is oil and lubrication benefits any mechanical device.
I am not saying that it will benefit all engines, but I do know that in mine it makes a noticeable difference.

Comparing to what is in bold above is chalk and cheese charlie.