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#4650933 - 01/30/18 09:25 AM Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi
WyrTwister Offline


Registered: 01/13/13
Posts: 1535
Loc: Texas
Any comments on this oil ? Price seems to be good .

Says it is full synthetic with Dexos license .

https://www.walmart.com/ip/Castrol-GTX-M...0SP0D6gc1NtE9F+

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#4650973 - 01/30/18 10:01 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
BJD78 Offline


Registered: 08/05/17
Posts: 493
Loc: Nebraska
Not sure if it is the best oil, but apparently it is the smartest oil on the shelf. It features those "intelligent molecules". LOL!!
_________________________
2010 Forester:122K
2009 Sonata :189K
2010 Tucson:55K

OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.

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#4650992 - 01/30/18 10:13 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
Crispysea Offline


Registered: 04/14/17
Posts: 403
Loc: TN USA
Great oil. Iíve used it, and many others have. Itís probably the best deal for synthetic right now.

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#4651012 - 01/30/18 10:35 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
fisher83 Offline


Registered: 01/26/12
Posts: 407
Loc: Omaha, NE USA
Thatís what I have in the Santa Fe at the moment. Nothing bad to report. Itís a good deal lately. I would use it again if I didnít already have a bunch of Pennzoil Platinum in the garage.
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#4651026 - 01/30/18 10:53 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
BKTX Offline


Registered: 01/04/18
Posts: 22
Loc: Dallas, TX
Castrol GTX Magnatec is a good oil. I have used it couple of times. 17.88 for 5QT jug is a good price.
Pennzoil is coming with a deal starting 1st Feb. $10 MIR on 5QT jug. Walmart normally has the best price on Penn Platinum. $10 MIR will make it cheaper than Castrol GTX Magnatec.
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#4651056 - 01/30/18 11:24 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11970
Loc: N.H, U.S.A.
Current Fill in my Rogue

This oil has been gabbed about all over this forum. The Semi syn showed stellar wear #s on for turbo engine(s) - if that means anything to you. The Synthetic IIRC has been AVERAGE.

My experience was (on the picky qr25DE Nissan motor):
The Semi syn Magnetec was a superb fair-weather oil, but the synthetic did NOT allow my engine to make high rpm ppower/torque for whatever reason (likely high shear, low-ish viscosity.

The best oil for warm season Ive run ( last summer) is 10w30 QSUD NON DEXOS - - BY FAR!

I will not run Maggy Syn again - until I forget I said that in the distant future smile


Edited by ARCOgraphite (01/30/18 11:26 AM)
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4651061 - 01/30/18 11:28 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11970
Loc: N.H, U.S.A.
Originally Posted By: WyrTwister
Any comments on this oil ? Price seems to be good .

Says it is full synthetic with Dexos license .


Remember "FULL Synthetic" does not mean synthetic, it means majority group III - which is dino!
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4651077 - 01/30/18 11:51 AM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: BKTX]
Matagonka Offline


Registered: 02/03/15
Posts: 469
Loc: NC
Originally Posted By: BKTX

Pennzoil is coming with a deal starting 1st Feb. $10 MIR on 5QT jug. Walmart normally has the best price on Penn Platinum. $10 MIR will make it cheaper than Castrol GTX Magnatec.


Where did you get this info? I didn't see anything online. That would be a great deal.

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#4651090 - 01/30/18 12:11 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: Matagonka]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2569
Loc: MN
Originally Posted By: Matagonka
Originally Posted By: BKTX

Pennzoil is coming with a deal starting 1st Feb. $10 MIR on 5QT jug. Walmart normally has the best price on Penn Platinum. $10 MIR will make it cheaper than Castrol GTX Magnatec.
Where did you get this info? I didn't see anything online. That would be a great deal.
Do not buy Pennz before Feb. 1, 2018. http://www.pennzoil.com/en_us/promotions...XRpb25hbDE4Lw== so you can take advantage of the rebate.

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#4651123 - 01/30/18 12:39 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
PandaBear Offline


Registered: 08/05/02
Posts: 14220
Loc: Silicon Valley
Got it on Black Friday at O'Reilly for about $10 / 5qt after rebate, finally found a way to use up those rebate gift card from the past. 5w20 synthetic huh? I guess I'll use it in place of 0w20 in warm climate.
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#4651147 - 01/30/18 01:01 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: ARCOgraphite]
PandaBear Offline


Registered: 08/05/02
Posts: 14220
Loc: Silicon Valley
Originally Posted By: ARCOgraphite
Remember "FULL Synthetic" does not mean synthetic, it means majority group III - which is dino!


Do you prefer a Group IV API SH or a Group III Dexos1 Gen2?
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#4651181 - 01/30/18 01:50 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: oil_film_movies]
Matagonka Offline


Registered: 02/03/15
Posts: 469
Loc: NC
Originally Posted By: oil_film_movies
Originally Posted By: Matagonka
Originally Posted By: BKTX

Pennzoil is coming with a deal starting 1st Feb. $10 MIR on 5QT jug. Walmart normally has the best price on Penn Platinum. $10 MIR will make it cheaper than Castrol GTX Magnatec.
Where did you get this info? I didn't see anything online. That would be a great deal.
Do not buy Pennz before Feb. 1, 2018. http://www.pennzoil.com/en_us/promotions...XRpb25hbDE4Lw== so you can take advantage of the rebate.



All I see is save $10 when you bring it in for an oil change at participating locations. Nothing for DIYs.

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#4651194 - 01/30/18 02:05 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: Matagonka]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2569
Loc: MN
Originally Posted By: Matagonka
All I see is save $10 when you bring it in for an oil change at participating locations. Nothing for DIYs.

http://www.pennzoil.com/en_us/promotions/do-it-yourself-oil-change/promotion-9.html might be a better link, without the frame-session info in the URL.
Note Pennzoil doesn't have a link on their promotions page to the upcoming Feb. 1 promotion yet, but it exists as a web page right now.

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#4651200 - 01/30/18 02:11 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: ARCOgraphite]
TheOilWizard Offline


Registered: 06/02/16
Posts: 107
Loc: US
Originally Posted By: ARCOgraphite
Current Fill in my Rogue

This oil has been gabbed about all over this forum. The Semi syn showed stellar wear #s on for turbo engine(s) - if that means anything to you. The Synthetic IIRC has been AVERAGE.

My experience was (on the picky qr25DE Nissan motor):
The Semi syn Magnetec was a superb fair-weather oil, but the synthetic did NOT allow my engine to make high rpm ppower/torque for whatever reason (likely high shear, low-ish viscosity.

The best oil for warm season Ive run ( last summer) is 10w30 QSUD NON DEXOS - - BY FAR!

I will not run Maggy Syn again - until I forget I said that in the distant future smile


The QR25DE is a picky engine? Please explain that. And perhaps define picky.

If you were unable to get proper power out of the engine, I think you may have had other issues.


Edited by TheOilWizard (01/30/18 02:12 PM)

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#4651335 - 01/30/18 03:52 PM Re: Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oi [Re: WyrTwister]
CT8 Offline


Registered: 10/09/14
Posts: 11020
Loc: Idaho
Magnetech is one of the best value for oils on the market these days. I have used it forthe past 3 years on my Ford pickup and my daughters 2010 Focus in fact I just changed it out ta Christmas and with a 9,000 something oils chnge interval the oil was barely below the full mark on the dip stick.
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