Engines With Dpd Or Dpf - Which Engine Oil To Use ?

[Fixzit]

I recently bought a 2007 Nissan Navara with YD-25TDDi 2.5L Turbo Engine which also has a DPF ( Diesel Particulate Filter). When I did my 1st service I used Delo Gold engine oil in it with the following standards "API CH4/SL, CG-4, CF-4,CF,CD. Today when i was reading an article I saw that I must use an engine oil with CJ-4 Standard or else I will have problems with my DPF later on. I'm using Super Diesel on mine because in my User Manual, Nissan highly recommend a Diesel with low Sulphur and 50+ Cetane level. As I found out Normal Diesel is 46 Cetane and 0.5 Slphur where Super is 53 Cetane and 0.03 in Sulphur.

Apparently The new API CJ-4 oils are made for high-performance diesel engines designed to meet 2007 on-highway exhaust emission standards. API CJ-4 oils exceed previous performance requirements and are specifically designed to protect emission control systems, help comply with emission standards, reduce engine wear, and control piston deposits and oil consumption.

Does anyone knows a Diesel engine oil which meets the CJ-4 Standard in Sri Lanka?

Edited February 27, 2012 by Fixzit

[baapriyankara]

do you have that user manual? and i want to know what is the best from hilux and navara? please tell me.....!

[Fixzit]

I got the user manual with mine along with the service history and old recipts (Previous owner was a really nice guy i guess )when i bought it. Navara Vs Hilux? well I decided to go for Navara because I get better value for money. Navara gives you more power, better comfort (Lot better honestly), more options and better looking. Only down side is, if you buy an Auto, it comes with a DPF which affects your fuel economy.

It's really upto you.. do few test drives and see...

[The Don]

I got the user manual with mine along with the service history and old recipts (Previous owner was a really nice guy i guess )when i bought it. Navara Vs Hilux? well I decided to go for Navara because I get better value for money. Navara gives you more power, better comfort (Lot better honestly), more options and better looking. Only down side is, if you buy an Auto, it comes with a DPF which affects your fuel economy.

It's really upto you.. do few test drives and see...

I don't think whether you have DPF or not is dependent on the transmission. Every diesel vehicle of this generation will have a DPF. I don't understand how a DPF affects fuel economy as long as its functioning well and importantly clear. With Navara's you really have to take care of the DPF as its a well known problem area. A good run at speed once in a while should help.

As for the engine oil, you might have to go beyond Caltex brands to find it. Its possible that the service stations might not have it so check spare parts shops and oil agents like Unimo.

[Fixzit]

The DPF affect the fuel economy in two ways. Firstly a DPF regen cycle will start to clean the DPF normally when it's about 60% blocked. So more restrictions In exhaust is less power so you ll be using more fuel. Secondly when the Regen cycle starts.. the ecu will increase the exhaust gas temp by using extra fuel until the cycle is finished.. thus using even more fuel...

Thanks for the info don.. and sorry for the delay..

[Fixzit]

And yeah.. as far as i know.. only auto Navara s came with a DPF until 2008..Manuals did not..sounds funny..but true..

[The Don]

The DPF affect the fuel economy in two ways. Firstly a DPF regen cycle will start to clean the DPF normally when it's about 60% blocked. So more restrictions In exhaust is less power so you ll be using more fuel. Secondly when the Regen cycle starts.. the ecu will increase the exhaust gas temp by using extra fuel until the cycle is finished.. thus using even more fuel...

Thanks for the info don.. and sorry for the delay..

Yes that is only for the regeneration cycle, which is equivalent to spending money on a service. On other times it should have no impact whatsoever because the exhaust system has been designed with DPF in mind. The common rail diesels found in modern double cabs deliver the best fuel economy particularly in comparison with old school diesels.

From what I know all Navaras with the common rail diesel engines (built by Renault I think) came with DPF. DPF is not a transmission related technology.

[Fixzit]

From what i heard, Nissan has being doing some exhaust emissions related testing using 2007-2008 automatic transmission models for their more latest models like the new V6. That's why they only used The dpf in auto models till 2007. At that time even non dpf manuals were upto the emission standards but they wanted to go up one step. Unfortunately we had to pay for the extra fuel. While the regen cycle is running the ecu gets the injectors to spray 2 extra bursts of fuel to get the exhaust temp up and to keep the CO levels down, also the dam thing is heavy adding more weight to the car. I figured out how to take it off and also done it with a 2007 Pathy R51 and so far it's great. Will do the same to my Nav in Dec. This is more important in 2007-2009 models because the YD25 engine has been built with power and torque in mind..that's why it's ahead of most other double cabs built around same time with pickup and towing capacity. Very cool engine to play around if you know what you are doing..very easy to stuff up too. And just like you mentioned don.. Renault made the engine..

Edited October 10, 2012 by Fixzit

[Fixzit]

By the way..I've spoken to enough Navara owners and done a quite a bit of research regarding fuel economy of Navara s and Pathys. While the manual do get the manufacturer mentioned fuel economy figure or atleast close to it around 10L/100kms,autos will almost never reach this And hangs around 13L/100kms to 18L/100kms mark unless you take off the dpf..which let's you come close to this..and being an auto that's fair. I'm not sure exactly why this happens and as you mentioned above fuel economy should only affect while a regen cycle is running. What my guess is for some reason the dpf of the Navara/Pathfinders are more restrictive than others. Dyno results show a 12hp gain in power just by removing it. I'll test this figure by myself In Dec with my Nav and let you know if you are interested...thanks.

Edited October 10, 2012 by Fixzit

[Sylvi]

Members

There is a person, who has developed a system to avoid the DPF system blocking the exhaust system and disabling the operating of the engine in Sri lanka,

He advertised this unit some time back on the H/A. I had a lengthy discussion with him on the said unit over the telephone he has some electronics’ knowledge of this unit and successfully experimented of this system later developed after few trials of his unit fitted to few vehicles with DPF, His development proved to be successful he advertised on the papers. Before that he was cleaning this system in a different way.

This post is a true post what happened few months back with a dealer in Colombo.

The buyer and the dealer both are known to me so I post to the forum.

Because I know few Diesel vehicle users bought this DPF System fitted used all were JDM vehicles, they had problems with them on their first few hundred kilometers or within few thousand Kilometers and had to tow down those Vehicles to Colombo attended them by the used vehicle dealers who sold those vehicles.

Even after dealer attended to one vehicle which a reputed dealer sold, the buyer was not satisfied because he got standard on the road on his fist trip with his family on an important mission. Therefore the owner not satisfied with the performance of the vehicle. So he had to toe back the vehicle for the second time requested his full money back what it cost him totally.

At last the dealer took back the used vehicle imported and registered by the said dealer what he sold. After accepting extra money gave him another vehicle whic was two years newer better model this DPF system was not installed.

Because new used vehicle owner was insisting the vehicle did not satisfy his requirement. If the dealer does not give a satisfactory solution complain to consumer protection authority and compensation with legal battle.

Sylvi Wijesinghe.

[Sylvi]

Members,

Please note I did not mention the above post is not an advertising post of the said unit developer by me. I only wrote what had happend in our country.

Sylvi Wijesinghe.

[Fixzit]

Thanks Sylvi for your input. If you have any contact details of that guy i would like to talk to him and see what he has done. As far as i know..deleting the dpf depends on the vehicle Model as well due to different manufactures using different types of dpf s, and also most dpfs as any other filter in our cars stop working and needs to be replaced at a very high cost when it comes to a situation that it cannot clean it self by regen or cannot be cleaned manually, and once the dpf light comes on and if the vehicle was driven for a while in limp mode it can cause some serious damage to the other components of the engine too. Im sure thats what happened to the car owner in your story..

[Sylvi]

Thanks Sylvi for your input. If you have any contact details of that guy i would like to talk to him and see what he has done. As far as i know..deleting the dpf depends on the vehicle Model as well due to different manufactures using different types of dpf s, and also most dpfs as any other filter in our cars stop working and needs to be replaced at a very high cost when it comes to a situation that it cannot clean it self by regen or cannot be cleaned manually, and once the dpf light comes on and if the vehicle was driven for a while in limp mode it can cause some serious damage to the other components of the engine too. Im sure thats what happened to the car owner in your story..

'Fixzit',

I spoke to him again his add appeared few Sundays back on H AD. I have posted his contact number on to your Email check your Email.

He has done more than 50 vehicle DPF/DPD In our country. It is a imported unit made exclusively for DPF and DPD systems.

This unit is foreign developed in a developed country which is not assembled in S L. By a person who is also a computer specialist like him.

I posted a Email to you because Advertising is prohibited in this forum.

Sylvi Wijesinghe.

[Fixzit]

Sylvi,

I got his details.. thanks. As I'm currently in Melbourne, I was planing on buying another DPF delete pipe from here because I tried it on my Pathfinder and it works fine. There is a company called Ch**-It and they make these pipes as well as diesel performance chips. Delete pipe cost about $300 AUD and comes with all the fitting instructions and also with a free EGR Blanking plate. I need to take off the DPF of my Navara back home in SL. I'll give this guy a ring and find out his rates. If he s cheaper I'll go with him. Thanks for your time and help once again.

Edited October 11, 2012 by Fixzit

[chan5]

'Fixzit',

He has done more than 50 vehicle DPF/DPD In our country. It is a imported unit made exclusively for DPF and DPD systems.

This unit is foreign developed in a developed country which is not assembled in S L. By a person who is also a computer specialist like him.

I posted a Email to you because Advertising is prohibited in this forum.

Sylvi Wijesinghe.

ANY proofs , links or citations for this details ?

I guess these are his words itself ?

Or previous experiences of anybody ?

[The Don]

By the way..I've spoken to enough Navara owners and done a quite a bit of research regarding fuel economy of Navara s and Pathys. While the manual do get the manufacturer mentioned fuel economy figure or atleast close to it around 10L/100kms,autos will almost never reach this And hangs around 13L/100kms to 18L/100kms mark unless you take off the dpf..which let's you come close to this..and being an auto that's fair. I'm not sure exactly why this happens and as you mentioned above fuel economy should only affect while a regen cycle is running. What my guess is for some reason the dpf of the Navara/Pathfinders are more restrictive than others. Dyno results show a 12hp gain in power just by removing it. I'll test this figure by myself In Dec with my Nav and let you know if you are interested...thanks.

Fixit, in the UK DPFs has been fitted on most diesels armed with common rail diesel engines including commercials to comply with EURO 4 emission standards, hence we've gotten used to having non smokey diesels.

Having a de restricted exhaust can obviously increase power gain, but usually at the cost of fuel economy.

I do know the DPF is a little problamatic on the Navara because even British Navara users complain about it (and mind you the Navara is not the only vehicle with DPF problems, and most vehicles used sparingly seem develop DPF problems) but the var majority of the Navaras in the UK are manual. In fact you can probably pick up an auto for cheaper than a manual.

[Fixzit]

Yes you are correct. But i know for a fact that deleting the dpf will give me better economy cz i have already done it on my Pathfinder and i notice a considerable gain in economy. What i have heard is and Has red about is having a de-restricted exhaust improve fuel economy, but i could be wrong. I'm not that much worried about economy but i don't think i can stop my dpf from ruining even though i use super diesel in mine cz I'm not using CJ-4 (Too expensive and not available in SL) engine oil and due to heavy traffic and short distance conditions in Sl.. so i guess I'll be better off just deleting the dpf. Still without the dpf D40 will pass the emission test in SL without any issues given that the M/T Navaras pass the test with no probelms without a dpf..

Edited October 11, 2012 by Fixzit

[Fixzit]

Maybe the dpf is not a major issue in UK, I think UK fuel standards are much better compared to Aussi..but over here it's quite an issue. This DPF delete pipe has been designed by an Australian company..and they seems to be selling them by heaps.

[taba123]

Members,

Please note I did not mention the above post is not an advertising post of the said unit developer by me. I only wrote what had happend in our country.

Sylvi Wijesinghe.

Hi Mr.Sylvi Wijesinghe,

if u can please message me the contact of the person who use to remove DPF/DPNR.

thanks in advance

[Fixzit]

It's not that easy to take off.. I've done it on my Pathfinder and so far it's good. There are 2 main types of dpf s and with one type you can't delete it without getting error codes. Fortunately mine was the other type so after some work..it's gone.

[Sylvi]

Hi Mr.Sylvi Wijesinghe,

if u can please message me the contact of the person who use to remove DPF/DPNR.

thanks in advance

'taba123',

Sorry, I could not reply to your post last night it was late in the night I replied only one post from my bed side computer.

Contact number of that person is in my down stairs office, once I go down first thing I will inform you the contact number in two hours.

Sylvi Wijesinghe.

[Sylvi]

'taba123',

Sorry, I could not reply to your post last night it was late in the night I replied only one post from my bed side computer.

Contact number of that person is in my down stairs office, once I go down first thing I will inform you the contact number in two hours.

Sylvi Wijesinghe.

His name is Mr. Dilantha Karagala. Contact number: 0776282097

DPD ELIMINATOR HE USES A IMPORTED UNIT.

Sylvi Wijesinghe.

[taba123]

His name is Mr. Dilantha Karagala. Contact number: 0776282097

DPD ELIMINATOR HE USES A IMPORTED UNIT.

Sylvi Wijesinghe.

Hi Mr.Sylvi Wijesinghe,

sorry for the delayed response. i've been abroad for the past one week. and i called the contact u gave by right now; i guess the number u mentioned might be wrong as he said he dont handle DPF issues. and the name you mentioned is not the one who spoke with me. he said there is no one known as Mr.Dilantha karagala. if u can please double check revert me. awaiting for ur reply.

thanks in advance,

[Sylvi]

taba123,

Same here (sorry for the delayed response).

I HAVE SOME OR OTHER MISSED YOUR POST ON 14TH.I logged in day before and yesterday, that was very late after coming from some work in late night.

Yes that was some other number I had given ti you.By mistake of mine.

Mr. Dilantha Kareagale's correct number is 0727224466.DPD ELIMINATOR HE USES A IMPORTED UNIT. I called him just now. He says

Few people contact him I have given to them correct number. Two got the job done others had promised not come yet.

My contact numbers are 2573690/ Mobile is 0712222420.

You always contact me if you want any difficult in Automobile matters mostly Electrical. Always prepared to help motoring community not interested in making money. At my last stages of life.

Best regards,

Sylvi Wijesinghe.

[udayap]

Hi,

I am expecting an expert advice on the following matter. According to the user manual of my vehicle, the recommended oil type is 5W30 approved by MB sheet 229.51. However, one of the authorized service agent in kandy suggests Mobil Delvec which is a MB228.5 approved oil.

Can this trouble the euro V engine of my vehicle.

regards

ud

Edited January 22, 2013 by udayap

[Magnum]

I got the user manual with mine along with the service history and old recipts (Previous owner was a really nice guy i guess )when i bought it. Navara Vs Hilux? well I decided to go for Navara because I get better value for money. Navara gives you more power, better comfort (Lot better honestly), more options and better looking. Only down side is, if you buy an Auto, it comes with a DPF which affects your fuel economy.

It's really upto you.. do few test drives and see...

As far as i know DPF affects your vehicles power a bit and not the fuel