Does 2T have a placebo effect?

[megatexture]

IMO the older the car the more noticeable the improvement. It certainly makes it quieter and smoother but I'm yet to see any fuel savings.
Do you all use jaso- fc spec oil in mineral?

[Cuppa]

Prior to putting the new exhaust on I think I was getting about 40 to 50kms more per both my tankfuls (180 litres) but cannot definitely claim this results from the 2t as I had also removed a bit of weight I’d been carting around. For me though, just the smoother quieter motor makes it worthwhile. With the new exhaust it feels smoother again, so who knows, but as I said I’ll keep using it whilst I have a supply.

[Cuppa]

but Ill continue to use it every other tankfull

So do you notice any difference between tankfuls? I know when I first put it in the difference was noticeable within the first couple of kilometres.

[Rock Trol]

IMO the older the car the more noticeable the improvement. It certainly makes it quieter and smoother but I'm yet to see any fuel savings.
Do you all use jaso- fc spec oil in mineral?

I agree. My old Pajero diesel really quietened down when I added a fuel additive (which is really just 2-stroke oil and some cleaner). When I add it to the CRD I really can't notice anything improving in the noise or smoothness department. There probably is some benefit in adding 2T to older engines which were designed to run on diesel with a higher sulphur content but on the post 2007 models probably not worth it.

[Warehouseno27]

I use it and feel it makes the donk quieter and smoother. Td42 with 180k.

[Dales300exc]

Ive been running it for the last few hundred litres of fuel. Didnt notice any real fuel economy difference or engine smoothness. But my on my did it quieten the 12mm pump. It was really loud and ratchety sounding. A lot quieter with 2t oil.

[macca]

Ive been running it for the last few hundred litres of fuel. Didnt notice any real fuel economy difference or engine smoothness. But my on my did it quieten the 12mm pump. It was really loud and ratchety sounding. A lot quieter with 2t oil.

I don't know what a 12mm pump is, are they normally noisy? Is it worn therefore makes more noise?
Does using an additive hide a problem, having something fail in the centre not knowing it was an issue is the reason for the question.
The other side of the coin is, a problem starts to appear then adding an additive could get you out of there.

[threedogs]

I don't know what a 12mm pump is, are they normally noisy? Is it worn therefore makes more noise?
Does using an additive hide a problem, having something fail in the centre not knowing it was an issue is the reason for the question.
The other side of the coin is, a problem starts to appear then adding an additive could get you out of there.

I think its just the nature of the creature, most diesel motors if not all rattle to a certain extent.
some like the 7.3 F250 motor are unbearable if you're parked next to one at the lights.
any lubricant to smooth out the operation has to be good IMO noises mean wear so less noise might equate to less wear.

@ Cuppa sorry for late reply yes you do notice the difference

[Dales300exc]

Larger pump to deliver more fuel and make more power.

Its only got 6000kms on it and noise was evident from first start.

[Patrol-Guy]

Well I've been reading about adding this 2T. And I think I have the general gist of what you're all talking about but just let me ask this so I'm clear about what to do so I dont bugger things up, so you are saying to add like 500mil of Castrol Activ 2T Motorcycle Oil http://www.supercheapauto.com.au/onl...ecommendations straight to the fuel tank before filling up. And this may or may not improve the running of the motor?