Castrol GTX

http://www.carbibles.com/additives.html

April 2007 Update In a reversal of fortune, Castrol has now pulled the GTX StartUp product from all the shelves apparently in all countries. They've not replaced it with anything which shows you how fickle the advertising and marketing arms are. People are less sensisitve to the idea of wear on startup, so it seems Castrol have pulled their niche product.
 
MarkDavis said:
Magnatec is cack.

It's a cheap mineral base oil with a Slick50 type synthetic additive added along with a multi-million marketing budget to make the gullible fools - like Simon - buy it.

I bet you also think that a Mars a day makes you work rest and play! LOL.
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Lol.
How long have you actually been on the motors forums?
 
Just to clear one thing up on this.

Magnatec has over 10% synthetic base oil, thus according to industry guidelines then it can be sold as semi-synthetic. The additive used is an Organic Friction modifier, not a Moly based additive like 'Slick 50'. The two can't even be compared.

The reason it works from cold is that the antiwear chemistry is not based purely on ZZDP, it has an antiwear additive that works from cold and is very polar (hence the cling like a magnet claim)

ZDDP decomposes to form a sacraficial Zinc Phosphate layer on the metal surface, this protects areas of the engine that rely on boundary lubrication. However this doesn't start to work until 80C. Magnatec additives work from cold.
 
Matt82 said:
http://www.carbibles.com/additives.html

April 2007 Update In a reversal of fortune, Castrol has now pulled the GTX StartUp product from all the shelves apparently in all countries. They've not replaced it with anything which shows you how fickle the advertising and marketing arms are. People are less sensisitve to the idea of wear on startup, so it seems Castrol have pulled their niche product.
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Wasn't selling that well and inline with the global brand restructure (the same one that saw SLX disappear from halfords) only GTX and Syntec exist now in America.
 
Simon said:
Just to clear one thing up on this.

Magnatec has over 10% synthetic base oil, thus according to industry guidelines then it can be sold as semi-synthetic. The additive used is an Organic Friction modifier, not a Moly based additive like 'Slick 50'. The two can't even be compared.

The reason it works from cold is that the antiwear chemistry is not based purely on ZZDP, it has an antiwear additive that works from cold and is very polar (hence the cling like a magnet claim)

ZDDP decomposes to form a sacraficial Zinc Phosphate layer on the metal surface, this protects areas of the engine that rely on boundary lubrication. However this doesn't start to work until 80C. Magnatec additives work from cold.
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ROTFL....where did you copy and paste that from to embellish?

:p
 
No wonder you talk utter cr@p then.

You and your company should be sent back to the US for your wholly misleading marketing, your FUD masquerading as science, and the fact that you sell overpriced cheap mineral oil on the back of profit driven, self interested, misleading marketing.
 
MarkDavis said:
No wonder you talk utter cr@p then.

You and your company should be sent back to the US for your wholly misleading marketing, your FUD masquerading as science, and the fact that you sell overpriced cheap mineral oil on the back of profit driven, self interested, misleading marketing.
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I talk about stuff I know I about, you on the other hand seem to not.

I have nothing to do with marketing. You don't need to be in the industry to know that any product sold to consumers with a marketing claim must meet those claims.

How old are you by the way? Back to the US? Since when was BP or Castrol an American company?

I've simply tried to educate in this thread, nothing worse than wrong information being posted on forums for everyone to read.
 
Castrol GTX is absolute pap - cheap pap for cheap cars. Sold at a high price on the back of highly funded marketing campaign. Magnatec is equally pap.

ANYONE who knows anything about cars isn't going to use either of those two over a genuine semi-synth or full synth. No amount of snake oil marketing is going to change that. Tell that to your marketing department.
 
MarkDavis said:
Castrol GTX is absolute pap - cheap pap for cheap cars. Sold at a high price on the back of highly funded marketing campaign. Magnatec is equally pap.

ANYONE who knows anything about cars isn't going to use either of those two over a genuine semi-synth or full synth. No amount of snake oil marketing is going to change that. Tell that to your marketing department.
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All 'genuine' semi synthetics follow the same rules.

And no you arn't going to use GTX or Magnatec over a Synthetic either. As Synthetic are better but they cost more.

I think you need to do a bit more reading on API ratings. Engine oils have to pass industry tests to be able to claim API specs (and indeed OEM specs). It is very wrong for a consumer (who seems to know nothing about oil) to claim an oil is crap.

I suggest you get back to BMW and tell them to stop using Castrol crap in their engines too? Especially that 'pap' in your 323i

Do you have any facts to support these wild claims?

Why do I feel as if you are personally attacking me? You have contributed NOTHING useful to this thread.
 
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Mobil 1 all the way from Dick Lovett and any oil of my choice from my indie.

It certainly wouldn't be that useless mineral pap known as GTX / Magantec.
 
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