A Responce From Castrol!...

[Mistermena]

Well at last I had a reply from Castrol about there EDGE oil recommendation. I asked the question "Why after putting my cars reg into your oil finder chart does it say that EDGE oil is okay for a car that has a DPF when it doesn't meet the C2 spec as per my owners manuel recommendation?"

I contacted Opie Oils and after some research they came back and told me that Castrol EDGE 5w-30 was not the correct spec for a car with a DPF... Hence the reason why I went for the Mobil 1 ESP as both Castrol and Mobil meet the VW's 507 00 spec, but only the ESP meet the C2 spec.

This was the responce from Castrol...

Thank you for your e-mail. Apologies for the delay in replying.

You are correct that the preferred oil for Toyotas such as your Avensis

fitted with diesel particulate filters (DPF)is a 5W-30 meeting the ACEA

C2 specification, however Toyota also accepted a 5W-30 engine oil

meeting the ACEA B1 specification - even though this second type of oil

is not what is called low ash, the normal requirement for DPF equipped

vehicles.

We have made the recommendations you have seen on the website because

the ACEA C2 specification is equal to the ACEA C3 specification in terms

of DPF compatibility. Both specifications use the same chemical limits

which define them as low ash oils. The difference between the two is

that the C2 specification includes a more severe fuel economy

requirement than the C3 specification. Mobil 1 ESP 5W-30 has

demonstrated this fuel economy capability and so can claim C2 and C3,

whereas Castrol Edge 5W-30, which is formulated more towards engine

protection than fuel economy, has not demonstrated the fuel economy

benefit and so claims C3 only.

Because of the particular design of Toyota's DPF system, it is actually

more tolerant of the type of engine oil used than some other

manufacturer's vehicles, this is why Toyota accept the use of a

conventional (i.e. high ash) oil meeting the ACEA B1 specification if a

5W-30 low ash oil is not readily available. This explains why our

secondary recommendation on the website is Castrol Magnatec 5W-30 A1

which meets the ACEA B1 specification.

I hope this explanation reassures you that our recommendations are based

on sound interpretation of the ACEA specifications along with Toyota's

requirements and that anyone following our recommendations will not

compromise the reliability of their vehicle.

Please contact us again should you require any further information.

[T Sport 1978]

It states in my manual that A1/B1 are the oil to use, and that is exactly what i have been using (Castrol magatec 5w30 A1) and the car is happy.

I know some on here preach that all cars with DPF should use C3 for low ash content, but what it saids on my book, my car shall have. I really dont think Toyota will leave themselves open to lawsuits if they are not correct about their specification/requirements.

[acetip]

It states in my manual that A1/B1 are the oil to use, and that is exactly what i have been using (castrol magatec 5w30 A1) and the car is happy.

I know some on here preach that all cars with DPF should use C3 for low ash content, but what it saids on my book, my car shall have. I really dont think Toyota will leave themselves open to lawsuits if they are not correct about their specification/requirements.

although i have an auris petrol,the handbook has two sections on oils.one section is under do it yourself with the oil spec of both diesel and petrol.but the another section under specifications, again giving oil specs. quote....

using oil other than acea C2 (or B1) may damage the catalytic converter.

as there is no mention of the DPF,toyota must be happy that the self cleaning function protects the DPF without the need C2 complient oil.

but sometime ago i phoned Castrol and was told they do not reccomend EDGE or magnatec for toyota diesels with DPF.

only magnatec professionel.

[Druid Boy]

Ok, so here is today's dumb question: How do I know if my car has a DPF? 2006 Avensis 2.2 (150bhp) D4D. Slightly worried now cos my Toyota dealer in Reading put Magnatec in and I have been doing so ever since.

[T Sport 1978]

far as I know all models with D-Cat has DPF. Do you have this reference on your car body or engine cover?

[Mistermena]

It states in my manual that A1/B1 are the oil to use, and that is exactly what i have been using (castrol magatec 5w30 A1) and the car is happy.

I know some on here preach that all cars with DPF should use C3 for low ash content, but what it saids on my book, my car shall have. I really dont think Toyota will leave themselves open to lawsuits if they are not correct about their specification/requirements.

I've gone by what my owners manuel which says it has to be a C2 spec for the D-CAT. I think an email to Toyota UK tech dept is on the cards to clear up the engine oil question.

But having said that. I'd rather use an oil that gives me more mph. I seem to remember reading that the ESP had a higher Total Base Number (TBN) than the Castrol. And this should mean better engine protection...