Low sulfur Diesel benefits Fact or Friction ?

[yakzu10]

Dunno if these helps gents, this product is all I've been using ever since I've had my Triton. Has the Diesel bug killer if thats any good.

http://www.moreyoil.co.nz/moreys-diesel-smoke-killer/

[leonbee]

This is a worry...

Just looking at the Australian fuel standards and noticed the Lubricity must be a MAXIMUM of 460

Lubricity is the lesser concern... You are not guaranteed 460 as it states maximum.

Why not minimum Lubricity. Is this a mistake. Other items have a minimum like the Cetane index for example is a MINIMUM of 46.

You can find the list here

http://www.environment.gov.au/topics/en ... rds/diesel

[Longranger1]

The report on 2T is a bit suspect. Zinc in 2T? I would imagine that would cause plug fouling problems. There is zinc in normal motor oil though.

[leonbee]

This is a worry...

Just looking at the Australian fuel standards and noticed the Lubricity must be a MAXIMUM of 460

Lubricity is the lesser concern... You are not guaranteed 460 as it states maximum.

Why not minimum Lubricity. Is this a mistake. Other items have a minimum like the Cetane index for example is a MINIMUM of 46.

You can find the list here

http://www.environment.gov.au/topics/en ... rds/diesel

Yep 1am and to much scotch and coke with this post. 460 maximum is correct. Wear scare test can go up to 520 in America so our standards are good.

[leonbee]

The report on 2T is a bit suspect. Zinc in 2T? I would imagine that would cause plug fouling problems. There is zinc in normal motor oil though.

ummm think u must have been on the scotch as well. No plugs in a diesel engine.

I know what your saying. Reports of the zinc in 2T will foul injectors. I would think if this was a problem 2T would be fouling up the injectors on a motor bike it was designed for.

[leonbee]

Thread Summary..

Ultra Low sulphur Diesel unlike older diesel is very thin and not so oily and slippery. Designed to get a clean burn to reduce pollution carbon and nox etc. The common rail fuel system is also run under ridiculous high pressure, computer controlled to get a fine spray pattern to get a cleaner burn, performance and economy.
This system is designed with very fine tolerances to cater for this fuel.

By adding 2T oil you are making the diesel thicker interfering with these fine tolerances. The extra thickness may stress the fuel pump and injectors also effecting the spray pattern , economy and performance.

In fact I accidentally dropped 600mls of 2T in a full tank and my fuel economy went up. The 2T will also cause more carbon then standard ULSD when com-busted.

So the trade off in my opinion to reduce wear on the diesel lubricated mechanical fuel pump is detrimental.

Checking many specs on fuel additives claiming lubrication. I have found they are no better than 2T and some will also cause more wear by thickening or thinning the fuel further by containing petroleum solvents like petroleum natha, alcohol and glycol.

Bio-diesel has the best lubrication properties in the form of fatty acids. However it has its set backs one of which is diesel bug problems. Bio can be added to diesel up to 5% without labeling and is often added to help suppliers meet the Australian Standards of a maximum wear scare of 460. Its 520 in America. Mitsi states a maximum of 20% mix of bio.

Bio has great cleaning properties and may even clog your fuel filter if your fuel tank is to dirty. So in my opinion the occasional tank of bio before a fuel filter change will lube and clean your system safely. If u can find it. I can't.

Any comments. errors or emission welcome..

reference
http://www.jatonkam35s.com/DeuceTechnic ... e_test.pdf
http://biofuelsassociation.com.au/biofu ... y-vehicle/
http://biodiesel.org/docs/ffs-performac ... f?sfvrsn=4
http://dieselnet.com/tech/fuel_diesel_lubricity.php

[Longranger1]

The report on 2T is a bit suspect. Zinc in 2T? I would imagine that would cause plug fouling problems. There is zinc in normal motor oil though.

ummm think u must have been on the scotch as well. No plugs in a diesel engine.

I know what your saying. Reports of the zinc in 2T will foul injectors. I would think if this was a problem 2T would be fouling up the injectors on a motor bike it was designed for.

I'm referring to the use of 2T in a 2 stroke petrol engine... When leaded petrol was in use lead fouling of spark plugs was commonplace. Zinc in 2T would be bad news for plug fouling (in a spark ignition engine).

As to 2T increasing the viscosity of diesel fuel to any damaging degree at 200-300:1 ratios, well, I very much doubt it. If that was the case, biodiesel would be destroying diesel fuel systems everywhere. While 2T may provide some lubrication benefit the main advantage is in the polyisobutylene component. This modifies the burn for a more progressive combustion pressure rise. The advantages of that are obvious.