Toyota Hi-lux engine fault

**p38arover** · 21st July 2018, 01:27 PM

I see Ben Mullins (Isuzurover on here) is the expert they have asked for comment. Some will recall Ben is a filtration expert who organised the Provent trial for 50 of us on AULRO.

https://mr4x4.com.au/1gd-ftv-dustgat...sletter+%23218

**rick130** · 21st July 2018, 02:01 PM

Originally Posted by p38arover

I see Ben Mullins (Isuzurover on here) is the expert they have asked for comment. Some will recall Ben is a filtration expert who organised the Provent trial for 50 of us on AULRO.

https://mr4x4.com.au/1gd-ftv-dustgat...sletter+%23218

Ben knows his stuff, I miss his regular posts here.

BTW, I can't believe Toyota have published a statement saying =<5micron particles don't affect engine life !
Incredible spin.

**p38arover** · 21st July 2018, 02:04 PM

Yep, I miss Ben's posts, too.

Yesterday, on the M4, a late model HilLux went barrelling past, exhaling much oil smoke. Every time he hit the accelerator, an even bigger plume of smoke came out. Even my wife commented on it.

Regrettably, I didn't think to capture the smoke on the dashcam.

**trout1105** · 21st July 2018, 03:16 PM

Originally Posted by p38arover

Yep, I miss Ben's posts, too.

Yesterday, on the M4, a late model HilLux went barrelling past, exhaling much oil smoke. Every time he hit the accelerator, an even bigger plume of smoke came out. Even my wife commented on it.

Regrettably, I didn't think to capture the smoke on the dashcam.

Old Mate in the hilux has probably never changed his air filter like many others using different brands of 4WD's, including landrover owners and that will Always produce a nice smoke trail

**djam1** · 21st July 2018, 06:27 PM

Originally Posted by rick130

Ben knows his stuff, I miss his regular posts here.

BTW, I can't believe Toyota have published a statement saying =<5micron particles don't affect engine life !
Incredible spin.

They only have to last 100000 don’t they?

**DazzaTD5** · 22nd July 2018, 12:02 AM

Asian brands here!! ... pfft fancy infecting this thread with the dreaded "D" word...

My work vehicle up north was the last model 3.0lt Hilux D4D and yes it used to suffer the choking the air filter with so much dust it would get to the MAF and then kill performance. That was a regular thing when someone else had my Hilux. Fitting of a snorkel improved this a lot. It would tow a 2 ton lighting plant (plus a ton of tools in the back) and easily pull well in excess of the speed limit. It was a bloody good tough truck.

So yes the standard air intake pulls from the inner guard, but I say its more of a driver fault not keeping air filter clean, traveling too close behind another vehicle in a convoy.

**DazzaTD5** · 22nd July 2018, 12:12 AM

Ohhhh I now see the latest model has gone to a panel style air filter. Clearly the old round style was far too good of an idea!

A lot of crap machinery I worked on up north, I used to spray silicone spray around the air filter seal to assist in better sealing.

P.S as for calling it "dustgate" ... what a bunch of total *******.

**rick130** · 22nd July 2018, 09:43 AM

Originally Posted by DazzaTD5

Ohhhh I now see the latest model has gone to a panel style air filter. Clearly the old round style was far too good of an idea!

A lot of crap machinery I worked on up north, I used to spray silicone spray around the air filter seal to assist in better sealing.

P.S as for calling it "dustgate" ... what a bunch of total *******.

Yep, I always liked that the Hilux and Cruiser had those nice, big round filters, one big advantage over a TD5.

Economics overtake serviceability again....

**Homestar** · 23rd July 2018, 05:49 AM

Originally Posted by djam1

They only have to last 100000 don’t they?

Don't say that - mine has to last 200,000! It's over half way there and no dramas, but I don't take it off the bitumen - just like 95% of other Hilux owners I think, so not an issue. But I agree with the filter bit on them - hopelessly small compared to the last model.

**SeanC** · 26th July 2018, 04:24 PM

I found this interesting.

It’s in response to the new Toyota engine letting dust past the air filter, collecting on the MAF sensor and sending the vehicle into limp mode.https://mr4x4.com.au/toyota-1gd-ftv-bites-dust/ Toyotas go into limp mode too??? And I thought it was only Discos. Who knew

Toyota’s response was that as the particles were only 5 micron they would have no detrimental effect on the engine and just clean or replace the filter more often.

Ben Mullins from Curtin University, who is an Associate Professor with an interest in testing and researching automotive filtration systems – everything from oil, fuel, and specifically useful for us, air.

“I am surprised by the comments from Toyota. Firstly, 5 microns is regarded as a “coarse” particle in the air pollution world. It has been shown that fine particles (e.g diesel soot) can cause engine wear. Soot particles are <300 nm (0.3 microns) in size – albeit at high quantities in the oil.”

“Another common misconception is that changing your air filter more frequently is better for your engine. Air filters are not sieves, so capture the least amount of particles when new, and get better when they load with dust. So if the filter is the problem, changing it more often will let more dust through! Heavy vehicle manufacturers and filter manufacturers recommend changing filter based on pressure drop as this ensures both the longest filter lifespan and the least dust in your engine.”

Seeing I’m about taking on the servicing maybe not as good on idea to change the air filter at each service as I had thought.

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