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Why no love for Castrol GTX Diesel 15w-40??? #4520197
09/19/17 11:09 AM
09/19/17 11:09 AM
Joined: Apr 2005
Posts: 17
Fort Worth
CastroPenzoHavoMobil1 Offline OP
CastroPenzoHavoMobil1  Offline OP
Joined: Apr 2005
Posts: 17
Fort Worth
I found some of this stuff on clearance at my local wally world for $5 a gallon.
However, once I got home to check out the reputation of the product, I noticed there wasn't much said about it here at BITOG.
Why no love for Castrol GTX Diesel 15w-40?

Last edited by CastroPenzoHavoMobil1; 09/19/17 11:11 AM.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520198
09/19/17 11:14 AM
09/19/17 11:14 AM
Joined: Dec 2006
Posts: 18,620
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,620
Dallas,Tx USA
There was a really good uoa of it here years back on a tracked and raced 3000GT.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520217
09/19/17 11:34 AM
09/19/17 11:34 AM
Joined: Feb 2017
Posts: 67
Lafayette, Louisiana
Samrsnow Offline
Samrsnow  Offline
Joined: Feb 2017
Posts: 67
Lafayette, Louisiana
I impulse bought a jug at Walmart when it was 10 bucks a piece several months ago. Never found a UOA or VOA so I'm leery about using it in my BMW. Currently using some Delo instead. I would really like to use the castrol next oci.


1987 BMW e28 535is - mystery mileage (300,000+) 4 qts Pennzoil 20W50, 2 qts PP HM 10w30, Champ p828.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520228
09/19/17 11:45 AM
09/19/17 11:45 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
I have never seen it on sale.

Is it VAG TDI rated?


Multiple Diesel and Gasoline vehicles
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: ArcticDriver] #4520243
09/19/17 12:02 PM
09/19/17 12:02 PM
Joined: Apr 2005
Posts: 17
Fort Worth
CastroPenzoHavoMobil1 Offline OP
CastroPenzoHavoMobil1  Offline OP
Joined: Apr 2005
Posts: 17
Fort Worth
Originally Posted By: ArcticDriver
Is it VAG TDI rated?


I'm not sure, what bottle marking should I be looking for ArcticDriver?


07 Volvo V70
06 Honda Odyssey
02 Toyota Camry
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520265
09/19/17 12:42 PM
09/19/17 12:42 PM
Joined: Apr 2017
Posts: 928
SF BAY AREA, CA
dogememe Offline
dogememe  Offline
Joined: Apr 2017
Posts: 928
SF BAY AREA, CA
I don't know why O'Reilly sells that stuff CHEAPER than O'Reilly brand 15w-40 sometimes but I wouldn't use it.

Last edited by dogememe; 09/19/17 12:44 PM.

2007 Crown Vic P71 4.6 ~126K Miles, Royal Purple HPS 5W-30, Royal Purple Filter, Daily Driver, 5K OCIs.
2010 Escape FWD 2.5 ~84K Miles, Castrol Edge EP 5W-30, Wix Filter, Rented on Turo, 10-15K OCIs.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: ArcticDriver] #4520270
09/19/17 12:45 PM
09/19/17 12:45 PM
Joined: Oct 2009
Posts: 3,209
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,209
Wet side WA
Originally Posted By: ArcticDriver
I have never seen it on sale.

Is it VAG TDI rated?


Regular price at my Walmart for Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 QT $19.88.
I'd use it in a heart beat!


2004 Corolla 124705
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520272
09/19/17 12:46 PM
09/19/17 12:46 PM
Joined: Apr 2017
Posts: 429
Utah, USA
28oz Online content
28oz  Online Content
Joined: Apr 2017
Posts: 429
Utah, USA
I saw these at two local Walmarts for a couple months for $9.97 a jug. Then, they disappeared completely and haven't shown back up. I'm curious about it as well, although, I would think it's as good as any other diesel rated oil.


-----------------
1990 Nissan 300zx - Castrol Edge Euro 0W-40
2004 Nissan Quest - Pennzoil Platinum Euro 0W-40
2003 Ford Excursion 7.3 PSD - Mobil 1 TDT 5w-40
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520369
09/19/17 02:31 PM
09/19/17 02:31 PM
Joined: Sep 2015
Posts: 5,846
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,846
Kalifornia Kollective
If it's CAT and Cummin's rated, it is fine oil smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520420
09/19/17 03:56 PM
09/19/17 03:56 PM
Joined: Apr 2012
Posts: 3,159
Boston, MA
Bgallagher Offline
Bgallagher  Offline
Joined: Apr 2012
Posts: 3,159
Boston, MA
$5 a gallon I would stock up. I feel it was never the most popular because it was more expensive than options which are just as good.


2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520455
09/19/17 04:25 PM
09/19/17 04:25 PM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
Product Data Sheet:

https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/06974BB666CA91ED80257C320042918B/$File/GTX_Diesel_PDS_2012.pdf

Castrol GTX Diesel engine oil exceeds Cummins CES 20081 specification (but does not have Stamp of Approval).

I would use it in my old VW 1.6 NA diesel rabbit.


Multiple Diesel and Gasoline vehicles
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520855
09/20/17 01:34 AM
09/20/17 01:34 AM
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
We see it up here, but Castrol also tends to have about 3 other 15w-40 HDEO varieties on the same shelf, and the GTX often just gets lost in the shuffle with the PCMOs, whereas Vection and Elixion are shelved separately.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4521790
09/21/17 12:05 AM
09/21/17 12:05 AM
Joined: Jan 2014
Posts: 500
AZ
leroyd92 Offline
leroyd92  Offline
Joined: Jan 2014
Posts: 500
AZ
I was wondering the same thing. I bought 4 gallons the other day. Its going in gas motors though...


Supertech Junky
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4521924
09/21/17 07:34 AM
09/21/17 07:34 AM
Joined: Jul 2015
Posts: 4,624
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,624
Down Under
Here in the truck section will have Castrol RX next to the Mobil Delvac, Shell Rimula, Delo etc

In the car section you will the GTX 15W40 Diesel, but also stuff like Castrol Edge 0W40 C3 for the light duty Euro diesel cars.

The GTX Diesel is a good oil I'm sure, but it's a bit of a marketing fence sitter, neither here nor there.


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: leroyd92] #4521936
09/21/17 07:42 AM
09/21/17 07:42 AM
Joined: Jul 2015
Posts: 4,624
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,624
Down Under
Originally Posted By: leroyd92
I was wondering the same thing. I bought 4 gallons the other day. Its going in gas motors though...

A great application IMO, especially for old school flat tappet engines.

It's API CJ-4 / SN, KV 100 = 15.5 cSt, TBN = 8.5 and SA = 0.95 %

It's a thick strong oil, with good TBN, full SAPS and probably high zinc.


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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