Anyone usebleeps oil?

Ed

I am also usie Castrol GTX Diesel in my 4.2 turbo. Why are you changing to Titan is it for price or product reasons? Is Titan sold through auto stores? I am not familiar with it.Thanks...

G'day Zapper,
I started using the Castrol GTD (now GTX) Diesel oil when I bought my GQ 4.2 (previous vehicle) several yrs ago because I thought it was as good as any other, & because of it's ready availability...
However, following recent discussions on this & other forums, it would appear that this (CG4 rating) oil may not be the best choice for Japanese diesels because of it's low ash (detergent) content...
Apparently Japanese diesels are considered to be "dirty" engines (producing a lot of soot), and require a higher detergency level in the oil... (There's a whole 'nother discussion about the TD42T, but I'm not going there)...
The Titan Universal HD15w-40 is a CF4/SJ rated oil (higher ash content than CG4, I believe), and is what F u c h s
( www. f u c h s .com.au ) recommend for the TD42T, so that's what I'll be going with, as I've been very happy with the Titan Gear7590 in the g'box... Competitive pricing is always a consideration, of course...

F u c h s oils are sold in my area by Autopro, & I notice that my local Nissan dealer is also using this brand, so you might check your Nissan dealer if you can't find it elsewhere...

Regards, Ed. C.

Thanks Bradley, sounds a bit like our organisation!!

I thought the higher the number the less the detergant, must admit I don't know anything about diesel oil. Also have been told by a number of people not to go any higher than 2 grades over that stated. Can you please give me some more info.
Thanks.

Hi Aus, the higher the grade the better the detergency and the soot loading capability, the best grade at the moment is the CI-4 with the Volvo VDS3 rating, slightly better than a normal CI-4 . The main concern nowdays is the extra soot loading caused by the low sulphur fuels, if the oil cant keep the soot in suspension it becomes gluggy and blocks passages / sticks rings etc, then the base number drops and the oil loses its corrosion protection ability as well. A lot of engines which meet the latest euro3 emmissions spec are finding it hard to make it to 'normal' oil change intervals on our diesel quality, even using a synthetic CI-4 . The sulphur levels are soon to drop even further and the CI-4 oil rating will soon be outdated, fairly soon any new diesel will have to run a full synthetic oil and still do 5000k changes, so it will be pricey to keep em going.

yes the basic rule of thumb has been that you dont go up more than 2 grades from the original spec, but the change in fuels has really taken that away, you really dont have a choice anymore. Best advice is to choose a family of oils to stick with, and slowly work your way up the ratings, say 2 or 3 services on the next grade up then again on a higher grade, this will ease the change on the engine and minimise the excess oil consumption while its cleaning out. The earlier you can get an engine on to the top grade the better off it will be in the long run.

BUT if the bores and rings are shot then nothing will help it.

PS - i read some test results while i worked there that were surprising, in europe they ran an extended drain test on a prime mover using the top full synthetic oil, constantly monitored and only topped up when the filters were changed, fairly constant load and work. The oil went out of grade at 180,000k. They ran the same test here in an identical prime mover with same loads and it only made it to 80,000k, put it down to our bad fuel and higher average operating temps.

Hope this helps, as it does get confusing.

Thanks Bradley, all the info you wrote is very interesting. I'll get a price on the Ultra lube and go from there. I didn't really want to go to the extreme of getting synthetic or the best mineral oils as the lower spec has obviously worked up to this point. Can see the benefit of using good quality but with the changes being a max of 5000 klm and lower if town driving I can't see the reason to use the best oil. Probably will just settle for the Ultralube for now.

Thanks again.