Different types of Halfords' own-brand oil

[Rovinghawk]

I was looking at the various different types of 5w30 fully-synth oil & saw 6 different own-brand types: specifically for renault, vauxhall et cetera.

Does anyone know what is the difference between the various oils or is it just marketing>

RH

[Contigo]

There is a nice sale on at Halford at the moment, you can get Castrol Magnatec for well under 20 notes.

[EDLT]

They have different API ratings, look in your owners manual to see which one your car needs.

Unless it has ever been serviced in a garage, in which case they filled it using the nearest barrel of 5-30 semi-synthetic.

[Rovinghawk]

Thanks- I have some. I was querying the variety of own-brands out of curiosity.

RH

[mad4amanda]

each one meets the spec of the relevant manufacturer , what is there to not understand?

[Rovinghawk]

mad4amanda said:

each one meets the spec of the relevant manufacturer , what is there to not understand?

What is not to understand is what makes them so different.

RH

[Puddenchucker]

The API (American Petroleum Institute) grades are a broad & generic way of displaying an oil's properties. The ACEA (European Automobile Manufacturers Association) grades are, as I understand it, a bit more specific/detailed but still quite generic.

The manufacturers own grading system will be specifically designed to suit their engine requirements.
This may include, viscosity, the type and amount of additives, how well the oil can cope with contaminants (soot, petrol etc), is it suitable for use with Cats or DPF and how long it can last - is it suitable for 'extended' oil change intervals (e.g. 2yrs/20,000 miles) or can it only be used for 'normal' 1yr/10,000 mile intervals.

The manufacturers may also specify/require certain properties for a particular engine type/feature.
e.g. the VW 506.01 spec was for their Pumpe-Duse diesel engines.

This website, and I can't vouch for its accuracy, lists several of the independent organisation and manufacturer specifications: www.oilspecifications.org