Diesel fuel additives for modern diesel.

[Amalgam]

http://www.natbiogroup.com/docs/education/lubricity%20additive%20study%20results.pdf

The above study was in association with Diesel Place: Chevrolet and GMC Diesel Truck Forums

It was a study of Lubricity Additive on diesel without any additives in the US, which in general has a lower lubricity for their diesel.

[Scouser]

Is there any benifit to adding an additive to a non DPF car?
If so what is recommended
Thanks

[Transporter]

Is there any benifit to adding an additive to a non DPF car?
If so what is recommended
Thanks

Yes.

Widely available is Moreys Diesel Smoke Killer, Liqui Moly Diesel Clean and Boost (p/n 2769) both can be used in the cars with or w/o the DPF.

I also suggest and use BG 244 diesel additive every time the car is serviced.

Don't use Penrite DPF cleaner in non dpf cars. The Penrite DPF Cleaner is for the vehicles with the DPF.

[Transporter]

Just a reminder to those who compare the fuel economy (or rather those who use the fuel additives and then compare the fuel economy);

The fuel consumption check is always more accurate when you calculate it from the docket rather than using the MFD.

Keep in mind that when you compare 2 long trips and your vehicle is equipped with the DPF, then you should check from the scanner data when was the last active regeneration. Otherwise you may get very inaccurate results and wonder what's going on, since the engine is using extra fuel during regeneration process.

[Ryeman]

I regard the MFD as nothing but a distracting toy when it comes to fuel consumption.

[kaanage]

Just a reminder to those who compare the fuel economy (or rather those who use the fuel additives and then compare the fuel economy);

The fuel consumption check is always more accurate when you calculate it from the docket rather than using the MFD.

Keep in mind that when you compare 2 long trips and your vehicle is equipped with the DPF, then you should check from the scanner data when was the last active regeneration. Otherwise you may get very inaccurate results and wonder what's going on, since the engine is using extra fuel during regeneration process.

Would you expect an engine to do multiple regeneration cycles during a long trip if you have added a DPF additive like the Penrite one on the fill up just before embarking?

[Ryeman]

I'd like to get a response from a long distance delivery contractor eg o/night newspaper delivery to country areas with a minimum of one months figures before and after.

[sn809]

Just my personal experience, its not about the mileage only. It results in a smoother driving experience as well.

[bluey]

So here is what I got out of VCDS:


Mileage: 40190km-24972mi
Address 01: Engine (03L 906 018 BR)
17:37:18

300 Particle filter; difference pressure 6 hPa
304 Particle filter; fuel consumption since last regeneration 2.59 l
305 Particle filter; kilometers since last regeneration 46917 m
307 Particle filter; oil ash volume 0.02 l
308 Particle filter; soot mass calculated 8.12 g
309 Particle filter; soot mass measured 6.09 g
310 Particle filter; time since last regeneration 3949 s


For comparison, TDI Club data collection from members Clean Diesel DPF Data Collection Thread - TDIClub Forums
Average mileage 87179 miles = 140,301 km
Average oil ash = 84mL = 6mL/10,000 km

Mine = 5mL/10,000km. Hard to compare with confidence without knowing the accuracy of the ash measurement. How many decimal places of accuracy are we supposed to get out of the computer?

Someone at TDIclub suggested the ash capacity was 200-250mL. Someone else on another forum said 175mL. (I presume there should be an accurate figure per model???) On that basis, I should be good for 400,000km or more before needing a new DPF.

Using Morey's Diesel Smoke Killer. Seems not to be hurting.

[Greg Roles]

Sadly Bluey, DPF loading seems to be very logrhythmic rather than linear, in that it really ramps up loading as it approaches end of life, and it's surface area and efficiency decreases in compound fashion.

[CardinalSin]

Sadly Bluey, DPF loading seems to be very logrhythmic rather than linear, in that it really ramps up loading as it approaches end of life, and it's surface area and efficiency decreases in compound fashion.

We need an additive that can break down the particles that accumulate in the DPF.
That one would be worth buying.

Perhaps it could be added just before the DPF via a dedicated access point to save having to design a compound that can pass safely through the engine and turbo.

[Greg Roles]

Mate anything with Cerium in it will quickly regen soot in a DPF down to zero. It's oil ash that's the killer, I'm sure something could chemically remove it, but would probably remove the exhaust system as well. About all you can do is back flush that stuff, a DPF that turned 180 degrees would make a lot of sense. One that can't clog makes more, testing begins on the yeti real soon, has been a huge task.

[CardinalSin]

Your idea is the best solution. Good luck with it and if it works the engineers who design this stuff should get a kick up the arse for not doing that in the first place.

[fergo308]

Apparently Liqui Moly have a DPF cleaning product? Spoke to a mate at his shop the other day and he swears by it. Will try and get more info.

Justin...

[ope126]

Apparently Liqui Moly have a DPF cleaning product? Spoke to a mate at his shop the other day and he swears by it. Will try and get more info.

Justin...

LiquiMoly; LIQUI-MOLY Workshop - DIESEL PARTICULATE FILTER

Wurth; DPF Cleaner - Würth Australia

Plenty more out there too.

These are more workshop products, but you can also get the in-tank cleaners also.