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Why no love for Castrol GTX Diesel 15w-40??? #4520197 09/19/17 10:09 AM
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CastroPenzoHavoMobil1 Offline OP
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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 10:11 AM.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520198 09/19/17 10:14 AM
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aquariuscsm Offline
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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 0W20

Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520217 09/19/17 10:34 AM
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Samrsnow Offline
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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+) Chevron 20w50 - Mahle filter.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520228 09/19/17 10:45 AM
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ArcticDriver Offline
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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 11:02 AM
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CastroPenzoHavoMobil1 Offline OP
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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 11:42 AM
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dogememe Online Content
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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 11:44 AM.

2010 Ford Escape 2.5 ~102K Miles: Castrol Magnatec 5W-20, Wix Filter.
2001 Chevy Suburban 5.3 ~290K Miles: Unknown Oil, Filter.
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: ArcticDriver] #4520270 09/19/17 11:45 AM
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JohnnyJohnson Offline
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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 137480
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 76862
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520272 09/19/17 11:46 AM
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28oz Offline
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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 VG30DE - M1 EP 10W-30
2004 Nissan Quest VQ35DE - Castrol Euro 0W-40
2003 Ford Excursion 7.3 PSD - Rotella T6 5W-40
2005 Ford Taurus 3.0 Vulcan - Havoline HM 5W-20
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4520369 09/19/17 01:31 PM
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BrocLuno Offline
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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 02:56 PM
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Bgallagher Offline
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$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 03:25 PM
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ArcticDriver Offline
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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 12:34 AM
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Garak Offline
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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, Wix 57356
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 09/20/17 11:05 PM
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leroyd92 Offline
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I was wondering the same thing. I bought 4 gallons the other day. Its going in gas motors though...


My life became simple once I learned about diesel oil........
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: CastroPenzoHavoMobil1] #4521924 09/21/17 06:34 AM
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SR5 Offline
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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.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Why no love for Castrol GTX Diesel 15w-40??? [Re: leroyd92] #4521936 09/21/17 06:42 AM
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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.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
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