Nissan Patrol GUIII 3.0TD OIL

Note 5 next to ZD30DDTi on page 9-2 in the Nissan patrol Owners Manual states: " Never use API CG-4."

CG-4 is not a better spec oil. A better spec is a CHor CI rated oil.

Leroy

Strewth, that old Castrol ad must have been right............."Oils ain't oils, Sol"

How many bloody letters and variations can there be for stuff you stick into your bloody motor????????????/

That is not correct. The year the particular higher specification came into being does not mean you can use a specification of oil that is manufactured to suit 2006 engines in a 1910 diesel engine. The reason the engine manufacturer says use CF or lower is because the CG/CH/CI oils have additives in them that they don't want used in their engines. Whether they are right or wrong is immaterial if your engine is still under warranty. It might be due to the oil detergency, ash content, engine valve seat material, bearing material, amount of sulphur in the fuel in different countires, etc, etc. The API (American Petroleum Intsitute) and JASO (Japan) are standards from different countries and as such they have equivalents so that engines made in one country and sold globally can obtain a correct equivalent in the countries they are sold into. Note 5 next to ZD30DDTi on page 9-2 in the Nissan patrol Owners Manual states: " Never use API CG-4."

Why are they recommending an oil classification from 1990 in a 2000 engine?

Relevant Oil Listings

CI-4 >Introduced September 5, 2002. For high-speed, four-stroke engines designed to meet 2004 exhaust emission standards implemented in 2002. CI-4 oils are formulated to sustain engine durability where exhaust gas recirculation (EGR) is used and are intended for use with diesel fuels ranging in sulfur content up to 0.5% weight. Can be used in place of CD, CE, CF-4, CG-4, and CH-4 oils.

CH-4> Introduced in 1998. For high-speed, four-stroke engines designed to meet 1998 exhaust emission standards. CH-4 oils are specifically compounded for use with diesel fuels ranging in sulphur content up to 0.5% weight. Can be used in place of CD, CE, CF-4, and CG-4 oils.

CG-4> Introduced in 1995. For severe duty, high speed, four-stroke engines using fuel with less than 0.5% weight sulphur. CG-4 oils are required for engines meeting 1994 emission standards. Can be used in place of CD, CE, and CF-4 oils.

CF-4> Introduced in 1990. For high-speed, four-stroke, naturally aspirated and turbocharged engines. Can be used in place of CD and CE oils.

The CF rating is for fuel with over .05% sulphur, CG is less that and CH and CI have been back to .05%

That would be why it say’s not to use CG-4 oils due to the suffer content of AUS diesel.

CF and CF-4 oils are different also.

the nissan oil or another brand?

Leroy

I use a different brand.

brand being?

Gulf Western Motor Oils.
Google it and you will find their website.

They are just around the corner from me and they are personal friends as well.

hmmmm......thanks for that.

Leroy

Hi blown4by,
I must say that I agree with your statements, and I think that if you use an oil that is better or "higher spec" than the recomended Nissan oil, there should be no issue with 10,000km service intervals. However I can't find it anywhere in the bulletin, where it says not to use a fully synthetic oil.
I have been using Mobil1 for some time and have noticed some small benifits, particularly a quieter cold engine and it feels smoother, but that could be my imagination also. I havent noticed any significant changes in EGT's although I would have expected them to be lower with a thinner oil.
Mobil did recomend Mobil1 as well as Mobil Synth S for the ZD30 and it's interesting to note that in Europe, Nissan are recomending a 5W/30 for the ZD30.

Chaz

I think there is an issue with fully synthetics (e.g. Mobil 1) being "too good" at their job. With the diesel engine being compression ignition you run much higher compression pressures and therefore rely on maximum sealing of the piston rings. I know fully synthetic oils are not recommended for initial fill or during the "running-in" periods on some engines because they do not allow the rings to "bed-in" and this can cause oil burning and therefore increased oil consumption down the track. My mate is a Lubrication Engineer with Mobil and it was based on his advice that I use Synth 'S'. My local Nissan Service Manager, who I know personally through my work as well as owning a Patrol, (so he couldn't care less whether I buy Nissan oil or not) also advised against the use of fully synthetic oil. As a qualified Motor Mechanic and Automotive Engineer myself I went into it pretty thoroughly because when I lay out 55 of my hard earned readies and being a pedantic as well as tight bustard I want to make sure I look after the investment. Additionally as I service it myself I wanted to make sure there would be no warranty issues so I have had the dealer confirm in writing that the lubricants I am using have their approval.
Re Mobil 1, I don't have a Mobil cattle dog at home to refer to but I'd have thought it would exceed the CF rating and as Nissan say "CF or lower" that alone would preclude it's use. The reason they would recommend 5W/30 in Europe is colder temperatures i.e Minimums below 0 degrees C and maximums below 30 degrees C so the 5W gives you a lower viscosity for cold starts and you don't need a 40 or 50 at the other end as it doesn't get hot enough like in Oz.

Hi,

Nowhere do they say not to use a better spec oil than CG-4. It just says never to use CG-4 oil, in fact, the spec is a B3 and 10W40. I think the important point is the lower viscosity now recommended to assist flow.
Cheers

Common sense would indicate that "Never use API CG-4." means that and anything higher I would have thought?

Hi,

Actually, this is not quite true for the diesel oil specification. With oils rated primarily for petrol engines, the newer spec is always incorporating the older, lower rating i.e. SJ is always suitable for engines that require SG, SH.
This is not so for the diesel oil specs.

Cheers

Why?
The Nissan branded semi-synthetic oil is all but a couple of bucks more for the 5l.
I think I paid $34.00 last time, Magnatec was $32.00. So hardly worth worrying about.

Cheers

If you are asking why I use Magnatec rather than Nissan oil, that is simple, I pay way less for Magnatec than Nissan oil. I don't pay retail for Magnatec.

Point taken... Although for the avearge punter there is so little in it, I think it's best to stick with the nissan brew. Especially if it should be necessary to make a warranty claim on a blown engine.
Cheers

why not put it in youself and save the worry

Only way to go in my opinion!