DPF burn whilst in Low Range??

[Mudnut]

I spent the weekend crawling through 500mm grass whilst on a cattle station in Georgetown. A lot of it was in low range, and had "Off Road" mode activated. I know "Wade" mode turns off DPF burns, but does Off Road mode turn off DPF? I didn't want to start a fire, but also didn't want to turn off the cooling fans which the Wade mode does. Should be part of the programming as far as I am concerned.

 

[rovie]

I spent the weekend crawling through 500mm grass whilst on a cattle station in Georgetown. A lot of it was in low range, and had "Off Road" mode activated. I know "Wade" mode turns off DPF burns, but does Off Road mode turn off DPF? I didn't want to start a fire, but also didn't want to turn off the cooling fans which the Wade mode does. Should be part of the programming as far as I am concerned.

I have the same concern. Now that everything is so dry, there's a big risk of igniting the tall grass and branches in the forest if they brush under the vehicle.

 

[landmannnn]

For most vehicles, DPF regeneration only happens when certain conditions have all been met, for example 2k+ rpm and over 90kph and exhaust gas over a certain temperature and for 20 minutes.
I can't see that the Grenadier would be any different, but can't say for sure.

 

[TheDocAUS]

For most vehicles, DPF regeneration only happens when certain conditions have all been met, for example 2k+ rpm and over 90kph and exhaust gas over a certain temperature and for 20 minutes.
I can't see that the Grenadier would be any different, but can't say for sure.

Grenadier is different (at least my AU Spec Diesel is), my DPF burn off triggers on local trips around 50kph for less than 10 minutes. Then I extend the drive, when I can, to let the burn off complete.

 

[globalgregors]

For most vehicles, DPF regeneration only happens when certain conditions have all been met, for example 2k+ rpm and over 90kph and exhaust gas over a certain temperature and for 20 minutes.
I can't see that the Grenadier would be any different, but can't say for sure.

Unfortunately no… no such mechanism to suspend regen at low speeds.

 

[TheDocAUS]

Unfortunately no… no such mechanism to suspend regen at low speeds.

It is a serious fire danger in parts of Australia with dried spinefex. Many other countries would have a similar risk in summer.

INEOS really needs to action this serious risk. INEOS please prioritise this fix.

 

[DaveB]

Grenadier is different, my DPF burn off trigger on local trips around 50kph for less than 10 minutes. Then I extend the drive, when I can, to let the burn off complete.

Grenadier is different (at least my AU Spec Diesel is), my DPF burn off triggers on local trips around 50kph for less than 10 minutes. Then I extend the drive, when I can, to let the burn off complete.

Mine triggers after I have driven home from Hervey Bay.
About 15 kms at 100 kmh and she starts up.
Finishes about 10-15 minutes after I park at home.

 

[TheDocAUS]

Mine triggers after I have driven home from Hervey Bay.
About 15 kms at 100 kmh and she starts up.
Finishes about 10-15 minutes after I park at home.

More than once I have driven out of my driveway after returning home, to let the burn complete.

I would like to be warned about a burn, at around say 85%, and be able to start it or delay it.

 

[globalgregors]

More than once I have driven out of my driveway after returning, home to let the burn complete.

I would like to be warned about a burn, at around say 85%, and be able to start it or delay it.

Yeah, it would definitely be handy to be able to defer it. Even by only 6-12 operating hours.

 

[Clark Kent]

Yeah, it would definitely be handy to be able to defer it. Even by only 6-12 operating hours.

Ford has been paying attention. A manual regeneration button will be fitted to the 2026 Ranger Super Duty.

2026 Ford Ranger Super Duty revealed: LC79 rival to launch early next year

The Ranger Super Duty set to arrive in three cab styles, as key details emerge ahead of its 2026 launch

www.4x4australia.com.au

'After consultation with key end-users of the Ranger SD, Ford has fitted the vehicle with a manual DPF re-gen button – so the re-gen can be done when the vehicle is in a safe place, not, for example, when parked on dry grass when the heat generated could start a fire. DPF regenerations in regular Rangers are done automatically when required and are usually unknown to the vehicle operator.'

 

[NQ94]

Land Cruisers have the manual burn feature. Push and hold the button it will manually burn at mid to high soot levels. The dealer can reset the button to custom mode that allows a manual DPF burn at lower soot levels in the DPF. The delay burn button used in some applications when used too often will eventually derate the engine and force the driver to do a long full stationary burn. The trade-off for any engine for too many stationary manual burns is more oil changes.

 

[TD5-90]

For most vehicles, DPF regeneration only happens when certain conditions have all been met, for example 2k+ rpm and over 90kph and exhaust gas over a certain temperature and for 20 minutes.
I can't see that the Grenadier would be any different, but can't say for sure.

I can tell that this is indeed not the case for the Grenadier: While the overall frequency of DPF burns has decreased during the last 30.000km, and for a year or longer didn't encounter "helicopter mode", last week it caught me: Was slowly moving / sitting in a traffic jam for about 2 hours, hot weather, mostly idle. The engine for a few times increased idling speed while sitting in the jam, with no input from me. Slowly approached a filling station, and DPF burn started. Filling up under heavy fan noise, crowded station, all people staring...
So, DPF burn can hit you any time.

 

[Clark Kent]

Land Cruisers have the manual burn feature. Push and hold the button it will manually burn at mid to high soot levels. The dealer can reset the button to custom mode that allows a manual DPF burn at lower soot levels in the DPF. The delay burn button used in some applications when used too often will eventually derate the engine and force the driver to do a long full stationary burn. The trade-off for any engine for too many stationary manual burns is more oil changes.

Was it Hilux or LandCruiser or both that Toyota retrofitted a manual button due to DPF smoke issues?

 

[Eric]

I can tell that this is indeed not the case for the Grenadier: While the overall frequency of DPF burns has decreased during the last 30.000km, and for a year or longer didn't encounter "helicopter mode", last week it caught me: Was slowly moving / sitting in a traffic jam for about 2 hours, hot weather, mostly idle. The engine for a few times increased idling speed while sitting in the jam, with no input from me. Slowly approached a filling station, and DPF burn started. Filling up under heavy fan noise, crowded station, all people staring...
So, DPF burn can hit you any time.

I have had a burn start as I was approaching home, 2 miles out. Si I continued on a further 5 mile drive until it had finished so it didn't finish the burn parked up outside the house.

 

[NQ94]

Was it Hilux or LandCruiser or both that Toyota retrofitted a manual button due to DPF smoke issues?

Early Hilux had a retrofit kit for the DPF smoke issue. Its a standard feature now in all Land Cruisers and Hilux pretty sure it was standard on 70 when they got DPFs in 2016. My 2018 work ute has the button, never needed to use it. It has 280k on the original DPF with high idle and slow speed hours. 70s are very regular with burns while driving, between 100 and 350km and last about 5 to 7 minutes.

 

[landmannnn]

I can tell that this is indeed not the case for the Grenadier: While the overall frequency of DPF burns has decreased during the last 30.000km, and for a year or longer didn't encounter "helicopter mode", last week it caught me: Was slowly moving / sitting in a traffic jam for about 2 hours, hot weather, mostly idle. The engine for a few times increased idling speed while sitting in the jam, with no input from me. Slowly approached a filling station, and DPF burn started. Filling up under heavy fan noise, crowded station, all people staring...
So, DPF burn can hit you any time.

Interesting. Mine has only regenerated on motorways/autoroutes on longer drives.

 

[Skydance]

Always catches me out and most always seem to do it when I get home. I find it activates most often during traffic and lower rpm driving. I guess it depends on your circumstances, living in the inner city doesn’t help. It has got less frequent since new and smoother.

 

[Tjeska]

Always catches me out and most always seem to do it when I get home. I find it activates most often during traffic and lower rpm’s driving. I guess it depends on your circumstances, living in the inner city doesn’t help. It has got less frequent since new and smoother.

We have the same experience, car now on 12k kms.

Would be nice that the in car system could inform us on when the system would like to perform a burn off. So we could manualy start it then, when driving for longer periods.

 

[TheDocAUS]

Land Cruisers have the manual burn feature. Push and hold the button it will manually burn at mid to high soot levels. The dealer can reset the button to custom mode that allows a manual DPF burn at lower soot levels in the DPF. The delay burn button used in some applications when used too often will eventually derate the engine and force the driver to do a long full stationary burn. The trade-off for any engine for too many stationary manual burns is more oil changes.

The new Ranger Super Duty will have a similar feature.

 

[Mudnut]

I guess I am confused by INEOS with being able to turn off DPF burns during wade mode, but not off road mode. Low range, would be a suitable option also.