jip0 said:

erm yes they have in so many words

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Castrol Site said:

Castrol Magnatec protects your engine from the moment you turn the key thanks to the way its Intelligent Molecules cling and bond to critical engine surfaces

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Says "Intelligent Molecules, stick to critical surfaces", where's it say "cylinders"?

Maybe its intelligent enough to know the difference between a cam and a crank and doesn't stick to everything, there again, maybe it does?

i would of thought cylinders to be pretty critical

and also i said in so many words

but then again surely any part of the engine that oil goes to is pretty critical

I was a Castrol man, till i put it in one of my Bikes, it ran hot through town and felt slower, to the point where i changed it within a week for Mobil and there was a serious difference!
Now every thing gets Mobil 1, i just bought a tub or Mobil1 ESP for the bravo in between service interval change.

Shadeyman said:

Castrol claim Magnatec has "Intelligent Molecules", they have never claimed it sticks to the "cylinders".

I first used Magnatec in my old Range Rover. When starting from cold the engine was noisy untill the oil was pumped everywhere, then it would go quiet. Magnatec made in instant difference to how the engine sounded when starting from cold, much quieter right from the turn of the key. I've used it in every vehicle I've had since untill recently(giving Castrol Edge a try). As dave said earlier most problems are the result of the owners not changing the oil and filters regualry, Magnatec is a very good oil IMO.

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OK if you want to be pedantic, it doesn't say exactly cylinders, but as pointed out it does say critical parts... Cylinders as pointed out seem pretty critical! Castrol pay out huge sums on marketing. Personally I'm not really in position to say how good or bad this oil is, but others are. At the end of the day, telling porkies seems to be what Castrol are doing here.

The clue is in the name, "Magnatec", if the molecules are magnetic it would only stick to the ferrous engine parts, bearings, cams, cranks for example. Other non ferrous parts would be uneffected.

So if the cylinders are ferrous then they could be covered in "Intelligent Molecules", but if they are nonferrous, the type that uses that "Nicom" coating, then there will be no "Intelligent Molecules" stuck to them.

Edit

GrandeGuy said:

I was a Castrol man, till i put it in one of my Bikes, it ran hot through town and felt slower, to the point where i changed it within a week for Mobil and there was a serious difference!
Now every thing gets Mobil 1, i just bought a tub or Mobil1 ESP for the bravo in between service interval change.

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You should have checked before you put it in your bike. Castrol do not recommend the use of Magnatec in motorcycles because the oil covers engine, gearbox and clutch in most bikes. Which Castrol did you use?

FAQ - 15
http://magnatec.castrol.com/en/faqs

The thing is here,the name magnetic, just wouldn't do that in a hot engine. I'm led to believe as well, the oil is mineral with a tiny part hydro cracked added.
This has been discussed on the net by chemists who do this sort of thing for a living. The bottom line is simple... money. It would seem for what it is, it's over priced.

There was a court case some years back about what is/qualifys for synthetic. Seems not much. You can get away naming an oil synthetic with very little of this in it.

dont get chemists mixed up with salesmen calling them selves oilman on many forums

I'm not, I was referring to the amount of synthetic used in the oil. Chemists make this in laboratories, but the court case ended by allowing a very small amount being allowed. Obviously this was a win situation for all engine oil manufacturers. All oil has it's limits, but some will blind the motorist with speil that just impossible to happen, that's my grump.

Magnatec comes in semi and fully synthetic.
FAQ - 10
http://magnatec.castrol.com/en/faqs

Shadeyman said:

The clue is in the name, "Magnatec", if the molecules are magnetic it would only stick to the ferrous engine parts, bearings, cams, cranks for example. Other non ferrous parts would be uneffected.

So if the cylinders are ferrous then they could be covered in "Intelligent Molecules", but if they are nonferrous, the type that uses that "Nicom" coating, then there will be no "Intelligent Molecules" stuck to them.

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so it still might not be doing what it says it does

jip0 said:

so it still might not be doing what it says it does

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Its says "Intelligent Molecules that stick to critical surfaces".

The industry standard test evaluates lubricant performance in preventing camshaft wear, by simulating 100 hours start/stop or urban driving. Castrol test Magnatec for 3 times longer(300 hours) than the test requires and it easily out performs its competitors, so yes it does exactly what its supposed to, it sticks to the cam and reduces wear.

but it doesnt say it sticks to the cam it says it sticks to critcal engine surfaces, but you just said its magnetic so wont stick to all surfaces

translates to me as its all just a marketing ploy

no one drives for 300 hours though, most need an oil that is good for short trips with loads of stop starts

jip0 said:

but it doesnt say it sticks to the cam it says it sticks to critcal engine surfaces, but you just said its magnetic so wont stick to all surfaces

translates to me as its all just a marketing ploy

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Shadeyman said:

The clue is in the name, "Magnatec", if the molecules are magnetic it would only stick to the ferrous engine parts, bearings, cams, cranks for example. Other non ferrous parts would be uneffected.

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I didn't say they were magnetic, I said "IF".

Their marketing doesn't say it sticks to any particular part, just that it has "Intelligent Molecules that stick to critical surfaces". I guess if it sticks to any part the cam would be the obvious one as thats the industry standard test it has to pass.

dave said:

no one drives for 300 hours though, most need an oil that is good for short trips with loads of stop starts

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The industry standard test is exactly that by simulating 100 hours start/stop or urban driving. Castrol do this for 3 times longer than is required, hence they are the market leader in regards to this test.

all that testing and they still sell crap

Shadeyman said:

You should have checked before you put it in your bike. Castrol do not recommend the use of Magnatec in motorcycles because the oil covers engine, gearbox and clutch in most bikes. Which Castrol did you use?

FAQ - 15
http://magnatec.castrol.com/en/faqs

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I didn't it was castrol bike oil and it was absolutely crap!
You cant put any normal car engine oil's in a motor bike with a wet clutch.

Put it this way castrol are that good i did "whats the right oil to use in my car?" on their site and it says refer to Manufactures,
They don't even make an oil appropriate for my car!

GrandeGuy said:

Put it this way castrol are that good i did "whats the right oil to use in my car?" on their site and it says refer to Manufactures,
They don't even make an oil appropriate for my car!

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they recommend the most expensive oil for my little 8v :chin:

GrandeGuy said:

I didn't it was Castrol bike oil and it was absolutely crap!
You cant put any normal car engine oil's in a motor bike with a wet clutch.

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No you can't.
The motorcycle gearbox will not be properly lubricated with car oil, no matter dry or wet clutch.

My opinions in this discussion: I've been using Castrol oils and products for more than 40 years now, in lot's of cars and bikes, it's the absolute TOP in lubrication, if you ask me.
www.castrol.co.uk
www.castrol.de ( that's where I buy it, Germany...)