...what is the actual difference between the specs WSS-M2C913-C non DPF and WSS-M2C934-B DPF?
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...what is the actual difference between the specs WSS-M2C913-C non DPF and WSS-M2C934-B DPF?
DPF equipped vehicles require a low SAPS oil.
SAPS being Sulphated Ash, phosphorus and sulphur.
Here’s a copy from an oil manufacturer::
What is SAPS?
SAPS stands for sulfated ash, phosphorus and sulfur. They comprise a significant portion of a motor oil’s additive content. Sulfated ash is not added to oil; it is the result of additives in the oil burning and creating ash. The additives that can produce ash are most commonly used for total base number (TBN), but also help in other areas, like antioxidancy, anti-wear, cleanliness and soot handling. Phosphorus provides anti-wear properties and further antioxidancy, while sulfur contributes antioxidancy, anti-wear properties and engine cleanliness.
SAPS Levels
Given the beneficial properties these additives impart, it’s easy to assume a higher concentration equals a better oil. But higher SAPS levels can be a detriment to expensive exhaust devices, such as diesel particulate filters (DPFs) and catalysts. The European Automobile Manufacturers’ Association (ACEA) and original equipment manufacturers (OEMs) realized the importance of using motor oil formulated with precise SAPS levels, and lower limits were established in 2010.
So in layman’s terms...
The higher Phos/Sulphur content has some lubrication benefits that the low SAPS oils may lack (or use alternative additive packs to replicate).
So use the correct oil in a non-DPF should have some benefit.
Thanks Tombie, so a low saps oil may be worse in terms of lubrication?Quote:
Originally Posted by Tombie
We're talking about the exact same engine with and without a DPF Surely both oils are suitable for either engine? It's just that one of them is better for the DPF?
...otherwise DPF engine owners should be using non DPF oils to preserve their engines. A DPF is more of a consumable than an engine.
Non-DPF oils will block DPFs..
And if you’ve priced a DPF you’ll think an engine is cheaper!
After reviewing this thread I'm confused (again). Seem to be some conflicting statements.
Do Puma vehicles with a DPF need C or B grade, while vehicles without a DPF need A grade - is that right?
I didn't think ANY Aus-delivered pumas were fitted with a DPF. Which could potentially make this line of discussion pointless.
Can anyone definitively confirm or deny?
Confirm...Quote:
Originally Posted by Toxic_Avenger
Somewhere back in this thread there was a reference to 2.2s having DPFs.
Anyway, to rephrase my question, do non-DPF Pumas need A, B or C?
Hope this helps, fresh from page 1.
TL;DR: Shop for your oil in order of: of the oil viscosity, specification, then brand.Quote:
Originally Posted by Toxic_Avenger