https://www.ravenol-direct.uk/ravenol-flj-5w-30-engine-oil.html

Never heard of that brand before so I wouldn’t probably consider it. Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

OLOSTEVE wrote:

...Brilliant thanks for the post, Halfords have, Petronas on offer at the moment, hope they will have this in stock.

There are few more expensive places to buy parts and consumables than Halfords. I only use it as a last resort. Find a local independent motor factor and you'll get a far better deal. Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

A reasonable price:

https://www.getoffroad.com/accessories/oil...e-oil-5ltr FL2 MY10 TD4 GS traded in at 2 years
FL2 MY13 TD4 GS Current

I am a bit confused.
In castro oil there are c1 c2 a5 oils in 5w30 fully synthetic etc..and for Ford engines it is A5 so is there any difference between these castro oils as they are all 5w30 fully synthetic?

My local Halfords has started to stock the 934-B oil as from this week, so it should be with you very soon. I think it's £15 for a 2 litre container, and it comes in a fluorescent green colour container which should make it easy to spot!!

It’s £18 for two litres so £54 to change the oil. Too expensive for own brand oil. You can get 6 litres of Granville C1 oil for less than £30.
https://www.halfords.com/motoring/engine-o...-30-oil-2l Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

paxman wrote:

I am a bit confused.
In castro oil there are c1 c2 a5 oils in 5w30 fully synthetic etc..and for Ford engines it is A5 so is there any difference between these castro oils as they are all 5w30 fully synthetic?

This is a laymans definition of. Oil Classification as I understand it.

European Standard for car engine oils

For European vehicles sold in the US, there is a further set of criteria, the ACEA classification. Some oil manufacturers include ACEA classification on their oils in addition to the SAE viscosity classification. Modern engines have very tight tolerances and it's essential that the recommended grade of oil is used, especially with European vehicles. When the correct specification oil cannot be found, it should be purchased directly from the vehicle manufacturers to avoid the possibility of engine failure.

The codes look like this:
A: petrol engines

B: diesel engines of cars, light commercial vehicles


A1, B1: standard quality, normal intervals, but: *HTHS-viscosity lowered

A2, B2: standard quality, normal drain intervals

A3, B3: high performance oil, extended intervals are possible

A4: (reserved for vehicles with petrol direct-injection)

B4: similar to B3, but also for diesel direct-injection engines

A5, B5: similar to A3 or B4, but: HTHS-viscosity lowered

The A refers to petrol and the B to diesel engines. Some oil manufacturers include ACEA classification on their oils in addition to the SAE viscosity classification.

*High-Temperature-High-Shear-viscosity


C: petrol and diesel engines with exhaust after treatment

C1: is suitable for catalytic converter an diesel with particulate filter (DPF), low saps & fuel economy, HTHS viscosity is lowered

C2: is suitable for catalytic converter an diesel with particulate filter (DPF), mid saps & fuel economy, HTHS viscosity lowered

C3: is suitable for catalytic converter an diesel with particulate filter (DPF), mid saps

C4: is suitable for catalytic converter an diesel with particulate filter (DPF), low saps


E: diesel engines of heavy commercial vehicles

The value stands for different performance categories:

E2: normal use, normal drain intervals

E3: heavy use, longer drain intervals possible

E4: very heavy use, longer drain intervals possible

E5: similar to E3; also tested for American engines

E6: similar to E4, yet low ash, suitable for DPF and other exhaust systems

E7: similar to E5 yet stricter test criteria

E9: new specification

@yorky bob: I tried to enter the car reg into castro oil website and others, castro says it can't determined refered to dealer. I looked up on owner handbook it states that with dpf engine oil is Ford 934B, without dpf or petrol it's 913B.
Yet quite a few oil selection websites when I entered my car reg it returned castro A5 for stop-start car, neglecting the pdf requirements.

@aj918: thank for the info. I am curious about the code A for petrol and B for diesel. As the above oil selection they directed me to buy castro A5 even knowing that my car is diesel.

My guess is the oil companies place stop-start engine feature more important? than pdf regeneration but from now on I'd ask 934B oil when engine needs oii change.

Thank you all 😀

Ya need to be very careful of c1 spec oils as some are still only rated as Mid saps !
My company in their bean counter mode supplied C1 oil for my Mercedes and the DPF was 82% full in 6 weeks after oil changed, and that was because the cheaper C1 oil which stated was for Mercedes diesel was actually only suitably rated at as Mid saps.

As soon as we flushed it and used the correct spec oil and carried out forced regen it was perfect until they did it again at the next service with the same oil yet again. cost a fortune.

I have photos of the oil bottle and its C1 5/30 and when you read the small printed rated as mid saps Jaguar x-type sport gone
Jaguar x-type 2.2d sport one of my best cars ever sadly gone
Freelander 2 GS auto 2008 most unreliable ever ! gladly gone
Freelander 2 GS manual 2013 only time will tell !

Yorky Bob wrote:

A reasonable price:

https://www.getoffroad.com/accessories/oil...e-oil-5ltr

oldgeezer wrote:

My company in their bean counter mode supplied C1 oil for my Mercedes

Yorky Bob wrote:

paxman wrote:

I am a bit confused.
In castro oil there are c1 c2 a5 oils in 5w30 fully synthetic etc..and for Ford engines it is A5 so is there any difference between these castro oils as they are all 5w30 fully synthetic?

Email the Castrol technical help line and ask them. Then report back as I would love to hear the answer.

This was said tounge in cheek as Castrol say only a dealership has the correct Castrol oil. It’s taking by both companies at the highest level. I have had the Millers oil in now for a number of oil changes and the car runs sweet on it. It’s my last word on this as it’s now going around in circles  FL2 MY10 TD4 GS traded in at 2 years
FL2 MY13 TD4 GS Current

Give these guys a bell for first class advice www.opieoils.co.uk don’t bother with the likes of eurocarparts etc. As Yorky Bob said if you have a DPF Millers 5w30 C1 long life is perfect for your car.