Engine Oil Rise

[Morsa]

Hi Morsa,

re: post #170

That is a superb level of sarcasm. Are you sure you're not british?

Ha, ha. nope...just a desperate reaction!!!. I learned two days ago that my oil was not changed in october at 7.800 Km. Just emptied, analyzed and dumped back to the engine up to the max level. And I have driven +3.000 kms with it.

 

[erhayes]

I really think we need some input from experience Diesel people with top notch laboratory, used oil analysis data skills. All this guessing whether 7% or the new (dip stick X) 14% of diesel fuel in the oil will cause long term engine wear is a guess and not really useful for someone like me who often keeps a vehicle for 150,000 miles. Dyson Technology comes to mind as a group who is capable of answering these questions. I would hope that Mazda is persuing this problem using good analytical techniques to solve this problem and not just the new X on the dipstick. Ed

 

[Jasonjames]

If you feel its normal,..I'd except that, cause I've not owned a diesel, let alone one which has rising oil-levels. However because some dilution is going on, I'd be tempted to decrease oil-change intervals,..as the price of oil is quite small compared to the advantages.

 

[Morsa]

A colleague of mine has recently questioned to Mazda Spain, about the political for the new dipstick and its changes; today he has got the answer:

"With regard to the questions put to us please note that the vehicles to which the dipstick is changed are those who enter the shop and are diagnosed with high dilution. Right now in our market is not considered any further action"

Great, so, as you have dilution, they put you in a new dipstick with displaced X in order you may afford more...am I right?.

http://www.clubmazdacx5.com/temas/cambios-de-varilla-del-aceite.947/page-2#post-20016

 

[CX-SV]

If you feel its normal,..I'd except that, cause I've not owned a diesel, let alone one which has rising oil-levels. However because some dilution is going on, I'd be tempted to decrease oil-change intervals,..as the price of oil is quite small compared to the advantages.

That's exactly what many CX-5 diesel owners in Austrailia have reported doing, increasing frequency of oil changes (or decrease mileage between oil changes). Some are changing oil much more frequently than what is recommended in owners manual, which becomes more of a nuisance and waste of time.

 

[Morsa]

Besides the X rised on the dipstick, this is the solution to the rising and oil dilution:

http://www.clubmazdacx5.com/temas/tsbs-boletines-de-servicio-circulares-y-afines.874/#post-20137

 

[dad of jon]

/

Besides the X rised on the dipstick, this is the solution to the rising and oil dilution:

http://www.clubmazdacx5.com/temas/tsbs-boletines-de-servicio-circulares-y-afines.874/#post-20137

It seems that the engine's ecu monitors the amount of oil dilution to prevent engine damage. If it is 'concerned' then it would warn the owner by means of an engine warning light?

 

[Morsa]

Then, why many owners have had their oil changed by warranty without previous warning light?. Others, as me, just emptied the amount to regain the max., and others had to pay for the oil change. All in the same condition with the oil at the X.
And now, with two "X" out there, what criteria?.

very confusing

 

[dad of jon]

Then, why many owners have had their oil changed by warranty without previous warning light?. Others, as me, just emptied the amount to regain the max., and others had to pay for the oil change. All in the same condition with the oil at the X.
And now, with two "X" out there, what criteria?.

very confusing

Hi, My comment about the ecu was a translation from the website.

with the difference in dealing with the oil rise maybe that's the difference between the way dealers handle the problem. The dealer could change the oil ahead of the light coming under warranty if they thought it was not going to last to next service to avoid inconvenience to the customer. for example if you were having your tyres rotated mid-service intervals.

It follows that if the oil reaches X on the NEW dipstick that's more serious than if it reaches x on the old dipstick.

 

[change-man]

Oil Growth Issue - Diesel GT CX5
Had my new dipstick and PCM reprogram on 14 Jan. Also the oil was changed at same time at no cost.
At 11891ks on speedo drove from Canberra to Geelong, Adelaide and back to Canberra from last Sat to Thursday. Distance travelled, 2900ks and it was all on the highway at posted speeds. I have waited 6 months for the oil issue to be addressed. I hadn't previously driven the distances because of the need for multiple oil changes.
Hooray - oil has only grown around 2 mm. This means with that sort of growth -it would take circa 24000ks to reach the new X mark - so it seems to have addressed the issue.
Before the reprogram, a return trip, at highway speeds, of 1200ks showed an oil growth of about half the old distance to the X mark.
... However active regens seem to have increased – some after only 135 ks - at 110kph. But it could have been the ordinary country diesel fuel. Also fuel economy is down but again it may have been the ordinary country diesel. I'll monitor and inform.
I wonder what is the regen cycle numbers for the DPF filter - before it needs replacing?
Is this current PCM reprogram is one of two to be done? 'Mr Fish' from Britain on the Mazda 247 Forum said this would be the case. If another PCM reprogram is immanent then the oil issue is addressed but not quite fixed?
I think this current PCM reprogram is about the timing and quantity of diesel injected for active regens. The other PCM upgrade could be about regen numbers – after Mazda Japan tests it for a fair while.
Any comments?

 

[xtrailman]

I haven't bought yet due to this oil level issue.
I now feel hopeful that the issue is being addressed. Oil level raising isn't unique to Mazda, my xtrail has some over a year.
In fact the early T31 xtrails had PDF lights come on, requiring a 20 min run at revs over 2K, mine been faultless being two years into the model year.

The only thing of concern is the acceptable level of dilution, over the long term, I'm not concerned about that as i don't keep a car over 40K miles.

I do think in this day and age we should have some means of notification of a regen, up on the screen for example.
How do you know when a regen is on?

 

[Morsa]

Happy to Know that change-man. Here in France (or in Europe) the whole fix hasn't arrived yet. My dipstick was changed on jan 8th but without any PCM reprogram, not yet ready dealer said. To date, 25/jan no news. My oil was at the "old" X in october with 7500 Kms oil was not changed, just dump to the max mark. Since the oil has risen again to midway to the old X, now at 11200 km with the new X it is far away but still the original recycled-diluted oil!!!.

The first CX-5 equiped with new dipstick from factory was delivered two days ago, in Spain. (23/01).

Ah!, BTW: regens every 240-250 kms driving short distances, down to 190-200 on continous highway-high speed drive.

 

[change-man]

I haven't bought yet due to this oil level issue.
I now feel hopeful that the issue is being addressed. Oil level raising isn't unique to Mazda, my xtrail has some over a year.
In fact the early T31 xtrails had PDF lights come on, requiring a 20 min run at revs over 2K, mine been faultless being two years into the model year.

The only thing of concern is the acceptable level of dilution, over the long term, I'm not concerned about that as i don't keep a car over 40K miles.

I do think in this day and age we should have some means of notification of a regen, up on the screen for example.
How do you know when a regen is on?

I leave the istop on. Even when aircon is on (don't set to lowest temp) the green light of the istop is showing. The istop light goes out when the active regen occurs. Also the fuel use increases and when lifting off acc pedal fuel is not 00 but around 1.9. Also around town it sounds and feels a little rougher. On the highway I can't feel difference. There are no passive regens in the CX5

 

[Morsa]

Quite truth, change-man, but the prob here, in Europe, is that i-stop light is different, when on the green ligth is off while driving, it is only lit on green when i-stop actuates and the engine is stopped. If manually set the i-stop off, then the yellow light is always on but stays so even during regens. So your usefull clue is useless in Europe.

I asked to Mazda France why there are not an advise during de regens they answered: "Mazda engineers do not consider necessary to include such warning for the driver"

 

[xtrailman]

So going from your regen info, it suggests more soot is produced on the motorway?
Hence more regens to clean the DPF.

Which goes against the argument about diesel being unsuitable for short journeys?

 

[Morsa]

So going from your regen info, it suggests more soot is produced on the motorway?
Hence more regens to clean the DPF.

Which goes against the argument about diesel being unsuitable for short journeys?

THAT IS!! This is what I have been posting in several forums, by my own experience, as I said before. Very strange

 

[Buger]

Quite truth, change-man, but the prob here, in Europe, is that i-stop light is different, when on the green ligth is off while driving, it is only lit on green when i-stop actuates and the engine is stopped. If manually set the i-stop off, then the yellow light is always on but stays so even during regens. So your usefull clue is useless in Europe.

I asked to Mazda France why there are not an advise during de regens they answered: "Mazda engineers do not consider necessary to include such warning for the driver"

Also in the US, we have an OBD2 port which allows to read data from the vehicle CPU. I'm not sure if there is the same or something similar for Europe but getting a OBD2/bluetooth adapter along with a smartphone app like "Torque" allows me to monitor via gauge or graph the temperature reading at one of the CX-5 sensors (I paid less than $30 combined)

 

[Morsa]

Also in the US, we have an OBD2 port which allows to read data from the vehicle CPU. I'm not sure if there is the same or something similar for Europe but getting a OBD2/bluetooth adapter along with a smartphone app like "Torque" allows me to monitor via gauge or graph the temperature reading at one of the CX-5 sensors (I paid less than $30 combined)

Are you talking of this:

http://www.clubmazdacx5.com/temas/obd.773/page-3#post-19262

Welcome to the club (2thumbs).

BTW what parameter its better for detect regenerations?.

Some interesting comments here:
http://www.facebook.com/photo.php?f....207741192601303.47987.176023595773063&type=1

 

[Buger]

Are you talking of this:

http://www.clubmazdacx5.com/temas/obd.773/page-3#post-19262

Welcome to the club (2thumbs).

BTW what parameter its better for detect regenerations?.

Some interesting comments here:
http://www.facebook.com/photo.php?f....207741192601303.47987.176023595773063&type=1

Ahh, your app looks different than mine but I'm sure has the pretty much the functionality. I've been playing with mine for over a month but don't have a diesel (no diesel in US yet) and just like being able to know and graph things a lot. I'm not sure if there is a specific sensor for the diesel but would think that the cat temp sensor or one of the fuel trim or fuel usage sensors should show when an active dpf regen is happening. The sensor by the cat may be a good one to graph and set some kind of notification when it hits a certain temperature. I hope you can get some good data and share it if you do and I also hope Mazda fixes any diesel issues for you guys.

I would be interested in a future diesel so am trying to learn a bit by reading some of this stuff.

 

[Morsa]

xx