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Just drive around in second gear for a while, you don't have to go on a motorway.
Concerns over DPF
- Thread starter MM-Seat
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Soldato
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Can confirm this is nonsense
Soldato
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Well you are wrong then.
DPF regen conditions vary quite a lot from one vehicle to the next. Some require things like 40km/h+, at least 1/8 tank of fuel and so on. Others will do it at idle with the fuel light on.
A lot of people have the idea that thrashing it in low gears will help, it wont help trigger a regen, but you will do some passive cleaning from the heat produced.
A few weeks of short trips shouldn't do much harm at all. A lot of DPF cars will tell you if it's getting full and needs a run.
A lot of people have the idea that thrashing it in low gears will help, it wont help trigger a regen, but you will do some passive cleaning from the heat produced.
A few weeks of short trips shouldn't do much harm at all. A lot of DPF cars will tell you if it's getting full and needs a run.
I have had my Minibus from new. Its a Vivaro with Gen 6 1.6 engine with Ad-blue. As a taxi there is an awful lot of stop and start and some months a lack of long runs. From new it has given me a 'check anti-pollution system' warning at regular intervals.
It started about 18,000 miles. Booked it into dealer who said give it a thrash and it will clear. It did but not until the next day. It does it now between 5000 to 10,000 miles (done 60k now). To clear it is about a 4 mile (uphill if possible) steady 3rd gear drive at about 3-3.5k RPM.
The company Ford Torneos suffer terribly. They put that regen stuff in the fuel that works well.
It started about 18,000 miles. Booked it into dealer who said give it a thrash and it will clear. It did but not until the next day. It does it now between 5000 to 10,000 miles (done 60k now). To clear it is about a 4 mile (uphill if possible) steady 3rd gear drive at about 3-3.5k RPM.
The company Ford Torneos suffer terribly. They put that regen stuff in the fuel that works well.
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With Honda you can "special" devices to start the regen yourself. You can also see how much pressure and milligrams of soot there is in it.
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Could you not give it a good thrash on a motorway to re-gen it once a week?
Short trips does not get the oil, coolent and dpf up to temp. The dpf gets clogged and in some cases gases will find another way out, It’ll get to the point where forced regen will fail. Too many failed regens will dump diesel in the oil like the Toyota urban
Sure but it isn't as bad as some say - as I mentioned on mine for instance regular at least 10 minute trips with the speed not dropping below 10 MPH is sufficient to maintain the DPF. You don't need to be doing motorway trips frequently to prevent DPF issues with it.
It won’t regen if the temps are not right as dpf needs to get really hot to burn the soot into ash diesel take longer than petrol to get up to temp. But newer cars maybe different.
I’ve had loads of customers with diesels because “their cheaper to run” and only used as a shopping trolley. Forced regen fails and the only option is a new dpf £1000+ fitting or remove and send off to clean, cleaning is not 100% guaranteed to work. Had taxis with no problems with dpf.
LOL at how you guys need a motorway
In guernsey there thousands of diesel cars and the whole island is only around 7 miles long and around 3 or 4 miles wide
Manual on mine says it only has difficulty burning particulate matter if you drive below 10 MPH for a sustained period of time and/or regularly stop and start the engine within 10 minutes.
It recommends a ~40-45 minute run at 50 MPH "periodically" (or if the warning light comes on) if you regularly drive under those conditions but otherwise the DPF condition should be maintained without needing to do that.
Obviously different vehicles will vary.
LOL at how you guys need a motorway
In guernsey there thousands of diesel cars and the whole island is only around 7 miles long and around 3 or 4 miles wide
We have vans at work as I've mentioned that do like ~2 miles each way 2-4x a day or so running stuff between local sites, often in stop/start rush hour traffic, and do that for years without any DPF issues - IIRC they are 2.5L Diesels. One had EGR issues at a couple of years and the clutches are trashed but that is because of the way they are driven.
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Soldato
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Nah, just download Adobe DPF Reader - It will install a fresh, clean DPF each and every single bloody time you turn the car on!
Guessing you have a newer diesel? Probably using extra fuel to get up to temp which could be why some dump diesel in the oil.
Newish but not that new now https://en.wikipedia.org/wiki/V9X_engine it is a bit different to other diesels but I've seen similar in the manual for other diesel engines as well.
Soldato
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LOL at how you guys need a motorway
In guernsey there thousands of diesel cars and the whole island is only around 7 miles long and around 3 or 4 miles wide
My sympathies.
Renault make F1 engines but what the hell where they thinking combining the oil filler cap and dipstick?
I just get the dealer to deal with the oil every ~8K miles anyhow
I can forgive them a bit though as far as diesels go it is nice - 550nm torque makes even a pickup not boring to drive.
No Need as Guernsey a beautiful place to drive around with it having only around 70,000 vehicles
(Of cause this was filmed before the lockdown)