Thread: Review of (an idiots guide to) puma engine oil

Originally Posted by Zeros

Thanks Tombie, so a low saps oil may be worse in terms of lubrication?

Not necessarily, some mid and low SAPs oils might be as robust or better than high SAPs oils in terms of wear performance.

Put it this way, I'm using a mid/low SAPs oil that's suitable for DPF's (ZDDP levels under 1%, just, and phosphorous and sulphated ash under 0.09%) in my TD5 as I'm confident it will protect as well or better than anything else I can get for the $$.

My question remains: Will the correct oil for a 2.2 Puma with a DPF, damage a 2.2 Puma non-DPF engine?

Originally Posted by Zeros

My question remains: Will the correct oil for a 2.2 Puma with a DPF, damage a 2.2 Puma non-DPF engine?

No

Originally Posted by rick130

Not necessarily, some mid and low SAPs oils might be as robust or better than high SAPs oils in terms of wear performance.

Put it this way, I'm using a mid/low SAPs oil that's suitable for DPF's (ZDDP levels under 1%, just, and phosphorous and sulphated ash under 0.09%) in my TD5 as I'm confident it will protect as well or better than anything else I can get for the $$.

Which oil is that Rick?

Enviro Plus 10W-40 Mike.

ACEA E6/E9, API CJ-4
It isn't published anymore, but it used to sport a single digit NOACK number too which means a very low volatility. (Low oil consumption)

Used it in the Tdi and the Patrol's TD42T for quite a few years too.

I haven't done any testing for years but plan to do some regular tests soon.
It'll be interesting to see what it looks like.

Originally Posted by Tombie

No

So either the WSS-M2C913-C non DPF oil, or the WSS-M2C934-B DPF oil is equally suited to non-DPF Puma engines? But if you have a DPF Disco use the C934-B?

Zero's,
Unless you are bringing another point of discussion into this thread, but everything discussed to date relates to the puma Defender, not a disco.

If we are to look at the published specs in the service manual alone:

2.2 Tdci DPF Fitted?	Published Oil Spec	Notes
DPF Fitted	WSS-M2C934-C	NO Aus delivered Pumas were fitted with DPF
DPF NOT fitted	WSS-M2C913-B
DPF NOT fitted	WSS-M2C913-C	'C' spec is backwards compatible with the B spec

When I started this thread many moos ago, I went balls-deep in the tech info, the the extent that I confused myself to no end. I called the Castrol tech line to discuss, spoke with people in the know like Rick (who is a great bloke to-boot!) and eventually came to the realisation that if the oil weight is right, if the specification it meets is correct, then I'm 95% set. The remaining 5% would be taken up by more frequent oil drain intervals, which I'm due for approx 10K Km changes. The modern oils are designed for extended drain intervals.
So in my logic:
1) Any oil is better than no oil (or old oil!)
2) The correct weight oil should be used
3) The spec should be met- ideally WSS-M2C934-B or C spec which is a Ford spec oil.
4) You could throw extra money about on a low SAPS DPF suited oil, but realistically, not required, as adequate protection is inherent in the specification and regular drain intervals.

Incidentally, I noted today that the bottle of Penrite Enviro 5W30 oil I have in the shed is low SAPS and therefore I assume suitable for both those with and those without a DPF. So my assumption is go low SAPs and you'll be right with or without a DPF. Is that right?