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-M2C913-C |
NO Aus delivered Pumas were fitted with DPF |
DPF NOT fitted |
WSS-M2C934-B |
|
DPF NOT fitted |
WSS-M2C934-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.
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