.......  A newspaper delivery contractor since the 1960s, Hebley’s Corolla ticked over the two million kilometre mark earlier in the month, the New Zealand Herald reports.

Hebley drives around 5000km a week as part of his job, so gets the car serviced every two weeks.     .......

scotty is usually on the money.

i approach cars in a very similar way.

new technology is usually just over engineering and creates built in redundancy.

I bet he keeps a logbook and gets a big tax return at the end of the financial year. I have had my second-hand car for the last 8 years and it has added just over 140,000km in the last 8 years. It ticked over 190,000 km a few weeks back. There is no way that my car is going to make it to half a million, let alone 2 million km.

Even 5,000km per week driving should not mean you need to get your car serviced any more than every 6 months. The old (POS) 1983 Daihatsu I drove in my teens only needed a once every after winter service.

Well, toyota have had a problem.
A known one for a long time

Quote:



https://www.drive.com.au/news/class-action-filed-over-toyota-dpf-issues/

Every filter, regardless of what it is designed to trap, will have to be cleaned and emptied on a regular basis so that there is space to continue trapping more things. This process of cleaning and emptying a Diesel Particulate Filter is called DPF regeneration.

The soot created by the process of combustion which is collected in the filter is burnt off to make sure that the filter does not become blocked and that it can carry on trapping more soot.The Diesel Particulate Filter needs to be heated to a very high temperature in order to burn off the particles of soot. This can be achieved in one of two ways: active regeneration or passive regeneration.


When you drive for a long time at high speeds, the exhaust reaches very high temperatures. Driving at 70mph or above for a while will heat the exhaust enough to burn off the soot particles which have been trapped by the DPF. But most drivers to not drive at high speeds often enough or for enough time to rely on this passive regeneration to clear the DPF of soot particles.


Since many drivers do not use their cars to drive long distances on the motorway on a regular basis, manufacturers had to come up with a different way to clear the DPF of particles. They came up with a system in which active regeneration is activated when the amount of soot gathered in the DPF reaches a certain level. In most cars, this level is set at 45% of the DPF’s total capacity. When the soot gathered reaches this amount, it triggers the process of post combustion fuel injection which increases the temperature of the exhaust. This way, even if the car is not travelling at high speed, the exhaust becomes hot enough to burn off all of the soot which has collected in the DPF.If the active regeneration process is initiated, but you reach your destination before it has had time to burn off all of the soot, there is a possibility that the DPF warning light will appear on your dashboard. You should be able to clear this partial blockage simply by driving your car faster than 40 mph for roughly a quarter of an hour or so.

https://www.autobutler.co.uk/wiki/dfp-regeneration

The DPF function of Autel MaxiDiag MD808 PRO allows you to carry out numerous functions on the Diesel Particulate Filter system without having to send your car to a main dealer. The tool will manage DPF regeneration, DPF component replacement teach-in and DPF teach-in after replacing the engine control unit.

ECM monitors driving style and selects a suitable time to employ regeneration. Cars driven a lot at idling speed and low load will attempt to regenerate earlier than cars driven more with high load and high speed. In order for regeneration to take place, a prolonged high exhaust temperature must be obtained.

In the event of the car being driving in such a way that regeneration is not possible, i.e. frequent short journeys, a diagnostic trouble code will eventually be registered, DPF light and “Check Engine” indicator come on. A service regeneration can be requested in the workshop, using the diagnostic tool.

http://autelscanner.blogspot.com/2017/09/the-dpf-function-of-autel-maxidiag.html

................  I don't think this DPF issue is really Toyota specific these Toyotas have been the top selling vehicles for quite some time so more of them are being reported for this brand which gets ambulance chasing lawyers hopeful of making money involved.

Any diesel with a DPF will have problems if most of the driving is done in 10KPH peak hour traffic crawl along with picking kids up from school and going to shops to get milk. These engines aren't really suitable for short slow speed trips for some reason people think they are.  ...........

Baronvonrort wrote on Apr 18^th, 2022 at 7:39pm:



yes, I think it is not just the toyota DPFs that are problematic.
This is an Australian guarantee/warrantee legal quirk.
The product sold was not fit for the task.
A guarantee does not legally end at 1 year (or whatever) after purchase.
It is what is reasonable to expect.
eg, if you buy a tv for $150 and it fails after 14 months, that is reasonable.
For $150 you can't expect a lot.

If you buy a TV for $12,000 and it fails after 14 months, that is unreasonable.
For $12,000 you should expect a lot more than 14 months.