Read a post in fabia section and alot of people adding 2 Stoke into a tank of fuel and giving very good feedback saying it's better then milllers

Anyone done this on there Octy and have anything to say as I'm thinking of trying it in my car

I have done this and still do on occasion, there are lots of reports of the benefits such as quieter running, cleans the system, etc, etc.

Just make sure you only use mineral low-ash oil, at around 200:1 mix.

For my 2 pence worth, I've never noticed any difference with 2-stroke oil or millers or redex, I now just use brand diesel like Esso or Shell rather than supermarket stuff.

I'd also be interested to know people's thoughts on this. I use Millers regularly but can't discern any notable difference during driving. Instead I have to trust it is doing its job.

Can anyone comment on the cost difference between commercial fuel additives and 2-stroke oil?

There is a big thread about it here, have a read through, but it will take a while:

http://www.freel2.com/forum/topic878.html?highlight=stroke+oil

 

I used to run it on a Focus 1.6 TDCi and it ran quieter IMO when using the 2 stroke. Not tried it on a PD engine yet though.

I used Rock Oil Groundsman 2 stroke oil (ISO GD JASO FC API TD) as it can come in a 5 litre bottle for a good price.

http://www.rockoil.co.uk/cm/images/pdf/brochure/rock_oil_low_res_brochure_agricultural_horticultural.pdf

I noticed someone said low ash 2t oil.  "Low" is not the same as "No",  it means it has some ash. 

Any thoughts as to where this ash ends up?  Do you care?

As  even more carcinogenetic dust floating around? Or merely blocking up your catalyst?  Or remaining in your engine?

I don't know, but it must go somewhere.

 

As a student, I had to do lots of lab work on oils, flash point, ash content, lubricity and the like.  The amount of ash can be quite a lot. 

As above, I have not added anything to my Touran 1.9 PD and don't intend too, just decent brand fuel.

I used to add 2 stroke to a renault DCI I had, made no difference that I could hear.

Edited 30 November, 201411 yr by tamiyaandy

Millers and 2 stroke oil will not damage the injectors or anything else on a PD engine. All manufacturers will say they do not recommend any additives. This is so they have something else to blame for a breakdown and get out of covering stuff under warranty. It is a nonsense as all modern diesel has additive in it to varying degrees.

 

One of the reasons 2 stroke in the right ratio (BTW it isn't 200:1 it's 1:200) is good for an engine is sulphur. Sulphur helps lubricate your fuel pump, today low sulphur diesel lacks the sulpher content, 2 stroke adds sulphur.

 

BTW when Mercedes did their round the world thing, they carried their own fuel in tankers and it had 2 stroke mixed in it to protect the engines

I have never heard of adding two stroke oil to diesel, not sure of the benefits other than lubricity, that is all it does in a chainsaw and make smoke of course.

 

 

 Begs the question, "What is wrong with using Diesel in a diesel engine?"    :wonder:

The reason I use it is to make sure the fuel pump gets lubricated proerly, now that diesel has less heavy oil content and more bio. I only ever use it in engines where diesel pump failure is known to be a problem. So I used it in my Tci transit, and my 1.7 vauxhall. I can't think that I've ever heard of a pd engine having pump failure though so I've never bothered.

The reason I use it is to make sure the fuel pump gets lubricated proerly, now that diesel has less heavy oil content and more bio. I only ever use it in engines where diesel pump failure is known to be a problem. So I used it in my Tci transit, and my 1.7 vauxhall. I can't think that I've ever heard of a pd engine having pump failure though so I've never bothered.

Tandem pump failure in a PD engine is one of the BIGGEST faults and is common. But the biggest problem with a PD engine is letting a Skoda engineer anywhere near it. It has just cost me £200 to rectify the timing on a 2.0L BKD caused by a Skoda garage "advancing it a tad" by adjusting the cam and not using VCDS. Muppets

Edited 1 December, 201411 yr by milspectees

Don't.

 

I tried this regularly years ago in a previous motor. Had some unidentified engine problems later down the line (no idea if they could be attributed to 2-stroke, tbh) and subsequently sold the car. A bit of a faff at the pumps having to remember to pour it in all the time, too.

 

Just stick to V-Power/ BP Ultimate and leave the snake oil on the shelf. 

I have tried this in the past on an old Peugeot HDi engine that had a slightly sticking injector and ran generally quite smoky. Adding 2 stroke actually reduced the exhaust smoke a little and made the engine very slightly smoother while it was in the tank, which surprised me greatly at the time but does make sense.

 

The reason petrol engines produce smoke when two stroke is added is because a spark ignition engine cannot properly burn the two stroke oil (which is the point of it - to leave residual lubrication in the engine), so some of it partially combusts and comes out of the exhaust as smoke. A diesel engine has no such problem, it simply burns the two stroke oil as a fuel, so no additional smoke is produced.

 

Having said that, that was just an experiment on an old-ish car that wasn't worth a lot and already had a fault. I couldn't see any real benefit of using it long term and certainly wouldn't risk it in anything under warranty or with a DPF.

Not all 2-stroke oils are created equally.

If the engine has a DPF then you need something complying with JASO FC.  If it's non-DPF then you can get away with JASO FB.

http://en.wikipedia.org/wiki/JASO_FC

 

Stick with mineral or synthetic/mineral blends as the full synthetic stuff is mainly aimed at oil injection systems (not premix) and under certain conditions will separate from the parent fuel until it's given a good shake.  The mineral stuff mixes immediately, totally and permanently.  At 200:1 ratios it would take some extremely thorough fuel analysis to pick it up. as it's simply one light oil mixed with another.

 

If these aren't readily available then a marine 2-stroke complying with API TCW-3 will do the job.  TCW-3 is ashless & high detergent & also has low/zero metals (I can't remember which).

 

The heaviest concentration you'd want in a diesel is 200:1 and it's worth experimenting with a 250:1 or 300:1 ratio.  For those of you that can't visualise ratios this would be somewhere between 250ml to 150ml per 50L (50,000ml) of diesel.  Your average modern mower or chainsaw runs 50:1; a really old 2-stroke engine might be as oily as 25:1.

 

Reduced engine noise should be almost immediate.

 

Initial use will result in higher levels of smoke as it has a cleaning effect but after about 200L smoke should be less than before the additive.

 

There might be a slight improvement in fuel consumption but don't expect miracles.

 

You can also run it in a petrol engine but ratios will be around 1000:1 - 500:1.  A lot of the BRZ86 bunch use 2 stroke at 1000:1 as it stops the HPFP from chirping.