Ever hear this about Castrol GTX?

[Mark72]

I won't say from whom or where I got this..but check out the following comment...

All oils are compromises and Castrol GTX is a blend of oil that is strong in it's abilities to hold molecular chains together. Unfortunately in order to do this they sacrifice lubricants, which help with normal wear. That is why my factory VW manual recommends not to use Castrol GTX initially for rebuilds or cam replacements.

This guy seems to think that GTX doesn't do as good a job with normal wear because of what his VW manual says???

 

[SLCraig]

Meh.
All I know is, I like Castrol GTX.

 

[Mark72]

Would VW really recomend NOT using Castrol GTX on rebuilds? Could this be true? Just asking. Seems sort of ridiculous.

 

[Johnny]

I'm not a big Castrol fan, but I've never heard of such gibberish.

 

[bepperb]

"seriously, do not use castrol GTX on rebuilds"

Right from the owners manual.

 

[JT1]

Anyone have a VW man. handy?

 

[TXMXTruck]

Seems to be a very close variation of an Internet forum post I recently read that pertained to GTX High Mileage. The poster indicated something to the affect that "there is only so much additive you can add to an oil, so they are causing increased wear by adding the seal conditioners....." I dismissed what I had read as unsubstantiated [censored].

 

[MolaKule]

Sounds highly dubious to me as well.

No one is going to reduce the other additives in favor of dumping a lot of seal conditioners in an oil.

Base oil/additive formulation is a delicate balancing act and it would be suicide to do such a thing.

Proposterous.

 

[SrDriver]

If I am not badly mistaken Castrol was bought out by British Petroleum (PB) several years ago?

Like Johnny I am not a big fan of it either.

 

[qship1996]

GTX is just basic dino based oil with no special or magical powers.

 

[TXMXTruck]

Bingo, I just did a search and knew that I saw that exact wording before. Post #5 in this thread.

http://forum.miata.net/vb/showthread.php?t=308681 by caf2461 dated 11/28/2008.

All oils are compromises and Castrol GTX is a blend of oil that is strong in it's abilities to hold molecular chains together. Unfortunately in order to do this they sacrifice lubricants, which help with normal wear. That is why my factory VW manual recommends not to use Castrol GTX initially for rebuilds or cam replacements.

Since you do not track your car and want to go 7500 miles between changes I think you would be better off with a synthetic oil like Mobil 1.

 

[Audi Junkie]

 

[AceyMan]

Could it be as simple as the fact that GTX doesn't meet VW specs?

(Sorry, I don't have time right now to go find the PDS on the GTX line, but are any VW approved?)

 

[robertcope]

Originally Posted By: Mark72
That is why my factory VW manual recommends not to use Castrol GTX initially for rebuilds or cam replacements.


What is the title of this manual? I've read a lot of VW manuals and I don't recall any of them stating this.

robert

 

[JCCADILLACMOBILE]

Originally Posted By: Mark72
I won't say from whom or where I got this..but check out the following comment...

All oils are compromises and Castrol GTX is a blend of oil that is strong in it's abilities to hold molecular chains together. Unfortunately in order to do this they sacrifice lubricants, which help with normal wear. That is why my factory VW manual recommends not to use Castrol GTX initially for rebuilds or cam replacements.

This guy seems to think that GTX doesn't do as good a job with normal wear because of what his VW manual says???


I actually remember this.

i decided to use Valvoline MaxLife, really just to break away from my Family, who looved and always used Castrol GTX - This my Mom's family, my Dad's bought Texaco Havoline Supreme Religiously.

 

[nooil]

Originally Posted By: TXMXTruck
Seems to be a very close variation of an Internet forum post I recently read that pertained to GTX High Mileage. The poster indicated something to the affect that "there is only so much additive you can add to an oil, so they are causing increased wear by adding the seal conditioners....." I dismissed what I had read as unsubstantiated [censored].



Maybe if they used a bigger can they could get more additive in.

 

[JCCADILLACMOBILE]

Originally Posted By: nooil
Originally Posted By: TXMXTruck
Seems to be a very close variation of an Internet forum post I recently read that pertained to GTX High Mileage. The poster indicated something to the affect that "there is only so much additive you can add to an oil, so they are causing increased wear by adding the seal conditioners....." I dismissed what I had read as unsubstantiated [censored].



Maybe if they used a bigger can they could get more additive in.


Q: How do we lower the price of Oil?
a: Smaller barrels.

 

[shpankey]

Originally Posted By: bepperb
"seriously, do not use castrol GTX on rebuilds"

Right from the owners manual.


It goes on to say: "for really realzz!!!!"

 

[TXMXTruck]

Originally Posted By: SrDriver
If I am not badly mistaken Castrol was bought out by British Petroleum (PB) several years ago?


Correct and that is actually the main reason for my research. My younger sister works for BP in Houston, so I decided to support the team. Plus, the three major auto parts stores in our area have been having some great specials on Castrol products.

The secondary reason is after two very successful fills with Mobil 1, I tried some grape juice. Had to dump it after 3000 miles due to the embarrassing oil slick that started to develop in our parking lot. I am going to try GTX High Mileage to hopefully seal back up what never leaked in the past.

 

[KernelK]

I can remember hearing quite a few years ago that GTX was not a good oil for breaking in a cam. After breakin no reservations. I have absolutely no knowledge about the validity of this notion but I am inclined to believe it belongs with other old wives tales.