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Asda Oil Good Enough?


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#1 Mark44

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Posted 07 October 2008 - 09:32 PM

Hi all. I have a friend who reckons that the £8 Asda diesel semi-synthetic oil is as good as any other for my Estima. Is it as good as say Castrol or other higher priced oils which he suggests are merely marketing hype?

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#2 Calisto

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Posted 07 October 2008 - 10:34 PM

I use Tesco's oil, it has the same ingredients as Castrol and the like.

Had no problems using it.

#3 Mark44

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Posted 21 October 2008 - 03:33 PM

I use Tesco's oil, it has the same ingredients as Castrol and the like.

Had no problems using it.


Ok then, thanks very much.

All the best.

#4 BAILIFFCHASER

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Posted 05 January 2009 - 05:42 PM

You could always use wilkinson for £7.49 a 5 ltr bottle.

#5 oilman

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Posted 06 January 2009 - 09:54 PM

Sorry chaps, these cheaper oils do not have the same ingredients, they are cheaper as they use lower group basestocks.

They are made to a budget.

This info is worth a read.

This post may seem like going back to basics but we are constantly surprised by the amount of people who do not know or understand what is written on a bottle of oil and therefore have no idea of what they are looking for, buying or using.

This post should help as a basic guide, for more detailed information contact us and we will be happy to help.

So, to be blunt about the subject, if a bottle of oil does not contain the following basic information then DO NOT buy it look for something that does!

1) The purpose for which it is intended (i.e. Motor oil, Gear oil etc)

2) The viscosity (i.e. 10w-40, 5w-30 etc for Motor oils and 80w-90, 75w-90 etc for Gear oils)

3) The specifications that it meets (should contain both API and ACEA ratings)

4) The OEM Approvals that it carries and the codes (i.e. MB229.3, VW504.00, FORD 913a/b, BMW LL04 etc)

Ignore the marketing blurb on the label it is in many cases meaningless and we will explain later what statements you should treat with skepticism.

So, what does the above information mean and why is it important?

THE BASICS

All oils are intended for an application and in general are not interchangeable. You would not for example put an Automatic Transmission Oil or a Gear Oil in your engine! It is important to know what the oils intended purpose is.

VISCOSITY

Most oils on the shelves today are “Multigrades”, which simply means that the oil falls into 2 viscosity grades (i.e. 10w-40 etc)

Multigrades were first developed some 50 years ago to avoid the old routine of using a thin oil in winter and a thicker oil in the summer.

In a 10w-40 for example the 10w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity/flow at low temperature.

The lower the “W” number the better the oils cold temperature/cold start performance. I.E. 5w is better than 10w etc

The 40 in a 10w-40 simply means that the oil must fall within certain viscosity limits at 100 degC. This is a fixed limit and all oils that end in 40 must achieve these limits.

Once again the lower the number the thinner the oil, a 30 oil is thinner than a 40 oil at 100 degC etc. Your handbook will specify whether a 30, 40 or 50 etc is required.


SPECIFICATIONS

Specifications are important as these indicate the performance of an oil and whether it has met or passed the latest tests or whether the formulation is effectively obsolete or out of date.

There are two specifications that you should look for on any oil bottle and these are API (American Petroleum Institute) and ACEA (Association des Constructeurs Europeens d’Automobiles) all good oils should contain both of these and an understanding of what they mean is important.

API

This is the more basic of the two specs as it is split (for passenger cars) into two catagories.

S = Petrol and C = Diesel, most oils carry both petrol (S) and diesel © specifications.

The following table shows how up to date the specifications the oil are:

PETROL

SG - Introduced 1989 has much more active dispersant to combat black sludge.

SH - Introduced 1993 has same engine tests as SG, but includes phosphorus limit 0.12%, together with control of foam, volatility and shear stability.

SJ - Introduced 1996 has the same engine tests as SG/SH, but phosphorus limit 0.10% together with variation on volatility limits

SL - Introduced 2001, all new engine tests reflective of modern engine designs meeting current emissions standards

SM - Introduced November 2004, improved oxidation resistance, deposit protection and wear protection, also better low temperature performance over the life of the oil compared to previous categories.

Note:

All specifications prior to SL are now obsolete and although suitable for some older vehicles are more than 10 years old and do not provide the same level of performance or protection as the more up to date SL and SM specifications.

DIESEL

CD - Introduced 1955, international standard for turbo diesel engine oils for many years, uses single cylinder test engine only

CE - Introduced 1984, improved control of oil consumption, oil thickening, piston deposits and wear, uses additional multi cylinder test engines

CF4 - Introduced 1990, further improvements in control of oil consumption and piston deposits, uses low emission test engine

CF - Introduced 1994, modernised version of CD, reverts to single cylinder low emission test engine. Intended for certain indirect injection engines

CF2 - Introduced 1994, defines effective control of cylinder deposits and ring face scuffing, intended for 2 stroke diesel engines

CG4 - Introduced 1994, development of CF4 giving improved control of piston deposits, wear, oxidation stability and soot entrainment. Uses low sulphur diesel fuel in engine tests

CH4 - Introduced 1998, development of CG4, giving further improvements in control of soot related wear and piston deposits, uses more comprehensive engine test program to include low and high sulphur fuels

CI4 Introduced 2002, developed to meet 2004 emission standards, may be used where EGR ( exhaust gas recirculation ) systems are fitted and with fuel containing up to 0.5 % sulphur. May be used where API CD, CE, CF4, CG4 and CH4 oils are specified.

Note:
All specifications prior to CH4 are now obsolete and although suitable for some older vehicles are more than 10 years old and do not provide the same level of performance or protection as the more up to date CH4 & CI4 specifications.

If you want a better more up to date oil specification then look for SL, SM, CH4, CI4

ACEA

This is the European equivalent of API (US) and is more specific in what the performance of the oil actually is. A = Petrol, B = Diesel and C = Catalyst compatible or low SAPS (Sulphated Ash, Phosphorus and Sulphur).

Unlike API the ACEA specs are split into performance/application catagories as follows:

A1 Fuel economy petrol
A2 Standard performance level (now obsolete)
A3 High performance and/or extended drain
A4 Reserved for future use in certain direct injection engines
A5 Combines A1 fuel economy with A3 performance

B1 Fuel economy diesel
B2 Standard performance level (now obsolete)
B3 High performance and/or extended drain
B4 For direct injection car diesel engines
B5 Combines B1 fuel economy with B3/B4 performance

C1-04 Petrol and Light duty Diesel engines, based on A5/B5-04 low SAPS, two way catalyst compatible.
C2-04 Petrol and light duty Diesel engines, based on A5/B5-04 mid SAPS, two way catalyst compatible.
C3-04 Petrol and light duty Diesel engines, based on A5/B5-04 mid SAPS, two way catalyst compatible, Higher performance levels due to higher HTHS.

Note: SAPS = Sulphated Ash, Phosphorous and Sulphur.

Put simply, A3/B3, A5/B5 and C3 oils are the better quality, stay in grade performance oils.

APPROVALS

Many oils mention various Car Manufacturers on the bottle, the most common in the UK being VW, MB, BMW, Ford or Vauxhall but do not be misled into thinking that you are buying top quality oil because of this.

Oil Companies send their oils to OEM’s for approval however some older specs are easily achieved and can be done so with the cheapest of mineral oils. Newer specifications are always more up to date and better quality/performance than the older ones.

Some of the older OEM specifications are listed here and depending on the performance level of your car are best ignored if you are looking for a quality high performance oil:

VW – 500.00, 501.00 and 505.00

Later specs like 503, 504, 506 and 507 are better performing more up to date oils

MB – 229.1

Later specs like 229.3 and 229.5 are better performing more up to date oils.

BMW – LL98

Later specs like LL01 and LL04 are better performing more up to date oils.


FINALLY

Above is the most accurate guidance we can give without going into too much depth however there is one final piece of advice regarding labelling.

Certain statements are made on labels that are meaningless and just marketing hype, here are a few to avoid!

Recommended for use where……………

May be used where the following specifications apply……………

Approved by………………………..(but with no qualification or specification)

Recommended/Approved by (some famous person, these endorsements are paid for)

Racing/Track formula (but with no supporting evidence)

Also be wary of statements like “synthetic blend” if you are looking for a fully synthetic oil as this will merely be a semi-synthetic.

Like everything in life, you get what you pay for. The cheaper the oil the cheaper the ingredients, lower the performance levels and older the specs it meets so beware!

If you would like further advice then please feel free to ask here or contact us via our website or email.

Cheers
Simon
Opie Oils

#6 Rhythmeister

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Posted 02 February 2009 - 05:09 PM

What he says! Also, check out the carbibles (google it) as there's some extra useful info' there about even more car matters ;)

#7 dieselfitter28yrs

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Posted 17 July 2010 - 12:21 PM

hi guys,and lady's,I'm new to all this techno,re internet etc,so bare with me!just a reply to the oil man at OPIE oil,I always look for the ACEA specifications,and I have to say he is bang on with what he says,apart from 'you get what you pay for',ie,I have just done my oil change on my 1.5 izuzu turbo diesel corsa,of 12yrs young,lol,and after looking around,cos I'm a tight sod,I tracked some good spec oil down at WILKO!!!,yep,you saw right,WILKO,£8.76,change out of a tenner!the spec is;ACEA A3/B3 API CF CF-4,and as the guy says,the ACEA spec is the one to look for,and this oil has the good all round spec,so get yourself off to WILKO,and get yourself some decent good cheap oil!!thanks for reading folks,don't forget to dispose of your oil properly,and wear the latex gloves when doing your oil change,your missus will appreciate it,or man!

#8 paulipm

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Posted 23 September 2011 - 01:24 AM

Asda 5W30 Fully Synthetic Oil 5Ltr is suitable for use in Ford Zetec and other modern engines requiring low viscosity oil including Petrol and light diesels. Specifications API SL/CF ACEA A1/B1, ford M2C 913A/B ,costs 20 pounds for 5 litres ,doesn't look a bad deal to me for my corolla 1.9 diesel ,recomended spec from the Haynes manual API CF4 / CF or CE or CP,ACEA B1

#9 jirehn

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Posted 08 December 2011 - 08:59 AM

Well I think this is great,It is better if Asda oils have a low price.How much is the difference with Castrol?

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