Which oil is the better quality

[galaxy333]

To be used in a Ford Edge Type: 2.0 TDCi 1998ccm 180HP 132KW (Diesel) 4x4 2017


Castrol MAGNATEC Stop-Start 5W-30 A5 Fully Synthetic Car Engine Oil
ACEA A1/B1, A5/B5
API SN/CF
ILSAC GF4
Meets Ford WSS-M2C913-A/ WSS-M2C913-B/ WSS-M2C913-C/ WSS-M2C913-D

or this:

Mobil Super 3000 X1 Formula FE meets or exceeds the requirements of:
ACEA A5/B5 X
API SL X
Ford WSS-M2C913-C X
Ford WSS-M2C913-D
STJLR.03.5003

 

[ABN_CBT_ENGR]

Define quality please

 

[tundraotto]

The Castrol - look at the higher levels of approvals.

- just make sure the approvals match your car manufacturer requirements.

 

[JMJNet]

I notice, you are in UK.
So, oil availability may be different.

What type of minimum standard is required for the vehicle?
If both oils met the standard spec for the car, then pick one of them.

In the grand scheme of things, I don't think a particular oil will reduce the lifetime of the car.
There are a lot more other factors besides oil that will determine that.

 

[galaxy333]

They both match the Ford specs, I just wondered if one was a better synthetic than the other, I have both in stock just was wondering if there was a difference worth using one over the other,

 

[andyd]

which one costs the least?

 

[Rollins]

Doesn't this engine require FORD M2C950-A?

 

[Lolvoguy]

Originally Posted by ABN_CBT_ENGR
Define quality please

+1

depends on the application

 

[Jetronic]

Originally Posted by galaxy333
They both match the Ford specs, I just wondered if one was a better synthetic than the other, I have both in stock just was wondering if there was a difference worth using one over the other,


Both are low viscosity for a diesel engine, I'd go with the one that is likely to have the highest HTHS viscosity between the two. Low viscosity oils tend to be less protective for cylinder walls in diesel engines, due to the high BMEP I guess. Thats what a lot of research papers show anyway.

But if you don't intend to run the engine as long as possible, one will be as good as another...

 

[LubricatusObsess]

How to find HTHS vis these days? A number of Mfg's seem to be hiding their spec sheets now?