2 stroke oil (2SO) as an additive to diesel fuel

[Jman15]

I am a happy owner of a 12mth old triton 4x4 2.5TD. From new the engine was very noisy, even tho a truck still worse than many. From about 3k I started using Castrol Activ 2T at the rate of 150ml per 70lt fill. The results now at 25k are quite amazing as it runs much quieter both at idle with a lot less clatter and throughout the rev range with and without towing. Still drives like a truck but much better especially over long drives where a few less db are appreciated. Can't really comment on improvement in economy as it was barely run in when 2T treatment began. Most fills get the 2T treatment but the odd one gets missed due to bottle being used may have not been topped up in a while, simply 2T next week. By the way no brand loyalty as I fill up with cheapest diesel I find at the time, also no difference in drivability or km per tank at all. BTW 10 lt per 100 km is the norm. Just thought I would share as lots here are in early stages of trials with this stuff. No scientific testing just real life testing where I pay all my own bills, so if I wasn't convinced I would jump off the 2T ship pretty quick.

Cheers- Jman

[CardinalSin]

Thanks for your feedback. I also had the Triton 2.5TD, the same engine as yours but the base model without the larger VV turbo.
Mine was in the ML single cab GLX with rwd. Same as you I started adding 2T but at 350ml the first time for the 70L tank and at 1:200 after that. The result was also amazing, I could hear other engines running at traffic lights with mine purring by comparison.
When I increased the fuel and boost on a dyno getting another 30% power and 40% torque, it was still super quiet compared to the way it ran without 2T. I did install a blanking plate to cancel the EGR with good results too, no codes at all from that.
Fuel consumption was rated at 8.2L/100km and I averaged 8.1L/100km by calc at the pump over the 50,000km that I had it.

Still miss it! One of my all time favourites and so very useful.

[WEDEL.1]

Hi Guys,

Slightly off topic, but I spent quite some time trying to find a suitable bottle with a longer nozzle to decant a tank shot of Moreys Smoke killer into, found sewing machine oil is at the correct 100mL. I just load this up after each tank full, and then adding the right amount at the bowser is both very quick a piece of cake.

Attachment 15867

I use the Flash Lube bottles to administer the 2 SO. Only weakness is the cap, which can crack if screwed down to hard. It has 50ml graduations on the side to make it easy to put the right amount in. I use 150mls each time for the 55 litre tank.

The BlueMotion has 32,000Kms on it now, all with 2 SO, no problems.

[Ryeman]

Well I finally got around to ringing the dealership that I bought my Yeti from to discuss how to avoid a HPFP issue arising.
He said, predictably, don't use ANY additive (voiding warranty etc).....use a big brand fuel, and, interestingly DON'T fill more than you need if the vehicle is going to be used only say once a month.
On that basis you would be low on fuel a lot of the time but it would be fresher. (? condensation in an almost empty tank?)
FWIW.

[CardinalSin]

Well I finally got around to ringing the dealership that I bought my Yeti from to discuss how to avoid a HPFP issue arising.
He said, predictably, don't use ANY additive (voiding warranty etc).....use a big brand fuel, and, interestingly DON'T fill more than you need if the vehicle is going to be used only say once a month.
On that basis you would be low on fuel a lot of the time but it would be fresher. (? condensation in an almost empty tank?)
FWIW.

What issues are there with the HPFP that you were concerned enough to ask?

[Ryeman]

What issues are there with the HPFP that you were concerned enough to ask?

Ahhh, if there is no real prospect of a HPFP issue in my 2012 Yeti I shall sleep better because I find pushing the boundaries for the purpose of emissions reduction and better economy, has the potential to make my diesel anything BUT economic in the out-of-warranty long run.
Based on past experience, if it was a Honda, I would not be so concerned.
But, it's a VAG product and unless you can write-off your loses as a business expense or, like me, retired, it's another matter entirely.
I bought it during an 'old stock' clearance sale (manufactured 1/12 reg 2/14) I could resist it's attraction but that didn't mean I completely trust VW engine/transmissions as an economic proposition out of warranty.
Cars are just white goods unless you're an auto tech wizard these days and 99.99% aren't.
I've always been a 'preventative maintenance' home mechanic and never had dealership servicing with any Japanese vehicle I bought because they were boringly reliable.
VAG products are certainly not boring.

[CardinalSin]

Ahhh, if there is no real prospect of a HPFP issue in my 2012 Yeti I shall sleep better because I find pushing the boundaries for the purpose of emissions reduction and better economy, has the potential to make my diesel anything BUT economic in the out-of-warranty long run.
Based on past experience, if it was a Honda, I would not be so concerned.
But, it's a VAG product and unless you can write-off your loses as a business expense or, like me, retired, it's another matter entirely.
I bought it during an 'old stock' clearance sale (manufactured 1/12 reg 2/14) I could resist it's attraction but that didn't mean I completely trust VW engine/transmissions as an economic proposition out of warranty.
Cars are just white goods unless you're an auto tech wizard these days and 99.99% aren't.
I've always been a 'preventative maintenance' home mechanic and never had dealership servicing with any Japanese vehicle I bought because they were boringly reliable.
VAG products are certainly not boring.

I'm surprised you aren't using 2SO as I would imagine that most who do use it are doing so for the very reasons you mention. Not just for any immediate benefits but also as a long term insurance policy by providing extra lubrication and cleanliness throughout the fuel and conbustion system.

[Ryeman]

I'm surprised you aren't using 2SO as I would imagine that most who do use it are doing so for the very reasons you mention. Not just for any immediate benefits but also as a long term insurance policy by providing extra lubrication and cleanliness throughout the fuel and conbustion system.

W e l l l - I might rpt might once out of warranty.
My fundamental issue is that all fuels are the product of industrial chemists who proport to be experts in their field serving engine manufacturers with critical issues to be resolved to avoid bankruptcy.
Injector 'scuffing' (noise?) may be reduced with an additive but sometimes there may be other consequences resulting.
I started a thread relating to CR engines to find out, in a crude statistical sense, who has done the highest trouble free kms with these VAG engines with/without additives.
Therein lies the proof
Its interesting to note dealerships have for many decades recommended their special additive for engine oil which they profited from, but not these days.
It may relate to their fear of emissions legislation and/or losing their factory backing .......who knows?.
I just wish more people would respond with their high km experience after all that's why most of us have diesels - for their longevity, or is that a sick joke these days?.

[WEDEL.1]

I've been using 2SO in my Bluemotion from DAY 1. No issues at all.

Maris

[CardinalSin]

W e l l l - I might rpt might once out of warranty.
My fundamental issue is that all fuels are the product of industrial chemists who proport to be experts in their field serving engine manufacturers with critical issues to be resolved to avoid bankruptcy.
Injector 'scuffing' (noise?) may be reduced with an additive but sometimes there may be other consequences resulting.
I started a thread relating to CR engines to find out, in a crude statistical sense, who has done the highest trouble free kms with these VAG engines with/without additives.
Therein lies the proof
Its interesting to note dealerships have for many decades recommended their special additive for engine oil which they profited from, but not these days.
It may relate to their fear of emissions legislation and/or losing their factory backing .......who knows?.
I just wish more people would respond with their high km experience after all that's why most of us have diesels - for their longevity, or is that a sick joke these days?.

If it's worth doing, the sooner the better. I have read and experienced enough to convince myself but it's up to everyone to make their own choice.
I like diesels for the torque and economy. Petrol engines last so long these days they might be a better choice long term, especially with their relative simplicity and improving economy.

I'm tempted by the 2016 Focus RS for a bit of practical fun.