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5-Qt Castrol GTX Magnatec Synthetic Motor Oil (Various Grades)

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Amazon.com also has 5-Quart Castrol GTX Magnatec Full Synthetic Motor Oil (Various Grades) for $17.88. Shipping is free. Thanks dj-3lusion

Note, usually ships within 1 to 2 months.
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Editor's Notes & Price Research

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No longer available:

Walmart.com has 5-Quart Castrol GTX Magnatec Full Synthetic Motor Oil (0W-20) for $17.88. Store pickup is free if stock permits or free shipping on $35+.

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Edited June 10, 2017 at 08:16 AM by
Link [amazon.com]

not bad if you have prime and need synthetic oil $17.88 shipped with prime
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Created 06-10-2017 at 12:55 AM by dj-3lusion
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92 Comments

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Featured Comments

Wanna second guess?
"Zero-weight oils are designed to reduce emissions during warm up. If the wrong oil is in the crankcase, it will change the three to five minutes it takes to bring the combustion chamber up to temperature. This will also alter how the variable valve timing works. It can also have implications for the catalytic converter.
Always use the motor oil viscosity recommended by your vehicle manufacturer. Using a different viscosity (thinner or thicker) may cause oil pressure and oil supply problems, especially in late-model engines with cylinder deactivation and/or variable valve timing (VVT)."

http://www.underhoodservice.com/u...o-problem/
8 Helpful?
It depends - one brand's 0w20 can even higher viscosity than another brand's 5w20.

Here is Castol's 0w20:
Viscosity @ 100C, cSt ASTM D455 9.1
Viscosity @ 40C, cSt ASTM D455 44.4

Mobil 1 extended performance 0w20:
Viscosity @ 100ºC, cSt (ASTM D445) 8.6
Viscosity, @ 40ºC, cSt (ASTM D445) 44.9

Mobil 1 extended performance 5w20:
Viscosity @ 100ºC, cSt (ASTM D445) 8.9
Viscosity, @ 40ºC, cSt (ASTM D445) 49.6

The Castrol is thinner at startup but thicker then the M1 5w20 at full temp.


Their viscosities are different.


Better on startup wear if you engine can handle a thinner oil.
7 Helpful?
Taking mechanical advice from anonymous posters and an internet deal site. What could go wrong?
5 Helpful?

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#3
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty

*Edit* Due to overwhelming response, and my own concern, I will stick with 5W20. I am a bit surprised that some manufacturers have slightly (perhaps negligibly) different viscosity than the others. Call me superstitious, but I will now stick to the manufacturer that I use for change oil on a regular basis. I have a 07 Mitsu endeavor, at 87k miles, and I know its probably sensitive even to a finger touch.
My Lawn mower has a Honda engine, so I will be using this oil with the mower, and stick to Pennzoil with the car.

Thanks to everyone who contributed.
Reply Helpful Comment? 1 1
Last edited by produke June 13, 2017 at 05:35 AM.
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06-10-2017 at 05:34 AM
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#5
usually ships in 1-2 months
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HIDDEN
06-10-2017 at 06:31 AM
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#8
Quote from produke
:
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty
https://www.amazon.com/gp/aw/d/B0...12nV2ej54L

same price for the 5w-20
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#9
Quote from produke
:
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty
Wanna second guess?
"Zero-weight oils are designed to reduce emissions during warm up. If the wrong oil is in the crankcase, it will change the three to five minutes it takes to bring the combustion chamber up to temperature. This will also alter how the variable valve timing works. It can also have implications for the catalytic converter.
Always use the motor oil viscosity recommended by your vehicle manufacturer. Using a different viscosity (thinner or thicker) may cause oil pressure and oil supply problems, especially in late-model engines with cylinder deactivation and/or variable valve timing (VVT)."

http://www.underhoodservice.com/u...o-problem/
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#10
Quote from produke
:
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty
Use the one designated by the manufacturer. Not worth damaging your engine for just a few dollars less. In fact someone mentioned the 5w20 available for the same price.
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#11
Quote from funkadunk8
:
https://www.amazon.com/gp/aw/d/B0...12nV2ej54L

same price for the 5w-20
link is for 5w-30
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#12
In for one for the Honda...$5-$8 cheaper than M1, not a huge difference over 10k miles but worth a shot. I'm curious to see if my Blackstone results are different with this vs the M1 in my last sample or the Honda OE oil before that.
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#13
Quote from produke
:
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty
It depends - one brand's 0w20 can even higher viscosity than another brand's 5w20.

Here is Castol's 0w20:
Viscosity @ 100C, cSt ASTM D455 9.1
Viscosity @ 40C, cSt ASTM D455 44.4

Mobil 1 extended performance 0w20:
Viscosity @ 100ºC, cSt (ASTM D445) 8.6
Viscosity, @ 40ºC, cSt (ASTM D445) 44.9

Mobil 1 extended performance 5w20:
Viscosity @ 100ºC, cSt (ASTM D445) 8.9
Viscosity, @ 40ºC, cSt (ASTM D445) 49.6

The Castrol is thinner at startup but thicker then the M1 5w20 at full temp.

Quote from baonguyen312
:
0w20 and 5w20 are simply the same.
Their viscosities are different.

Quote from sandy_1983
:
0w20 will be marginally better than 5w20
Better on startup wear if you engine can handle a thinner oil.
Reply Helpful Comment? 7 0
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#14
Quote from produke
:
Would it create issues to put 0w20 into a car with recomended 5w20? this will go in the engine editing July. ty

why would you thrust someone else with something so important like engine oil. just check your owners manual. if you don't have one then just state your vehicle year make model and someone will gladly find your answer for you
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#15
I now order all my oil and oil filters from Amazon. I use this Magnetec oil now since it reaches this price point off and on. I just wait for this price and order a few ahead of time. I stay away from s&s since I'll get charged the prevailing price at refill time.

I used to get all my oil and oil filters at Wal-Mart, but no more. A huge futile waste of my time there. Inveribly Wal-Mart's shelf will be empty of a motor oil or filter (both very common brands, grades and sizes). The employees will be too lazy to check backstock and say they don't have it if it's not on the shelf. If I online order them for store pickup, I am forced to wait in the returns line since the online pickup desk is adjacent to it and never manned separately.
Reply Helpful Comment? 1 0
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