SKU: 10937603723

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Case of 6

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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Case of 6Castrol GTX High Mileage motor oil is the leading consumer high mileage brand. You won't need to worry about using a high mileage oil or synthetic because this is both. It's a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn off and also liquid engineered to protect your emission system. One of the leading causes of 'check engine' lights coming on in high mileage cars is actually

Castrol® GTX® High Mileage motor oil is the leading consumer high-mileage brand. You won't need to worry about using a high mileage oil or synthetic because this is both. It's a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn-off and also liquid engineered to protect your emission system. One of the leading causes of 'check engine' lights coming on in high mileage cars is actually catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters.

Castrol GTX High Mileage Motor Oil is liquid engineered with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system, and find out how many miles you can go on a high-mileage oil, there is no better choice than Castrol GTX High Mileage Motor Oil.

Protect your investment with the Castrol Engine Warranty – with coverage for up to 500K miles. Enrollment is quick, easy and FREE! Learn more and register at www.castrolenginewarranty.com

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Case of 6

Key Features:

Phosphorus Replacement Technology to help extend the life of the emission system
Superior dispersancy that fights sludge build up
Exceptional oil burn-off protection exceeding industry standards*
Seal conditioners to help reduce leaks
Advanced additives that minimize engine wear
Improved fuel economy**
* Based on API and ACEA volatility specifications
** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

Specifications:

API SP/SN PLUS/SN
ILSAC GF-6
Meets Ford WSS-M2C945-B1
Meets Ford WSS-M2C960-A1

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 10937603723

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4.1 ★★★★★
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Rachel D.
Battle Creek, US
★★★★★ 4
Good sock but thick
Color: (001) Black / Black / Castlerock, Size: Small
These Under Armour socks are high quality and definitely durable, with great cushioning and a solid fit that stays in place throughout the day. The material feels supportive and they hold up well after multiple washes without losing shape. My only minor downside is that they’re thicker than I expected. They feel more like a heavy-duty training sock, which is great for colder weather or intense workouts, but a bit bulky for everyday sneakers or warmer days. That said, the quality is excellent, and if you prefer a thicker, more cushioned sock, these are perfect. Just something to be aware of depending on how you plan to use them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
C
Verified Purchase
Christina Gary
Pawtucket, US
★★★★★ 5
Black Under Armor Socks
Color: (001) Black / Black / Castlerock, Size: Medium
They fit perfect. I bought them for my Boyfriend & most pairs are too big or not Really no shows like they say. If they have white ones, I will be purchasing more.
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Reviewed in the United States on May 26, 2026
J
Verified Purchase
Joseph Pratt
Alexandria, US
★★★★★ 5
Great product.
Color: (001) Black / Black / Castlerock, Size: Medium
🙏🙏🙏
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Reviewed in the United States on May 16, 2026
M
Verified Purchase
Matthew J Hughes
Birmingham, US
★★★★★ 5
Fits well! XL is Real!
Color: (239) Elite Beige / Elite Beige / Halo Gray, Size: X-Large
As far as I know, these are the only XL no show tan socks on Amazon that actually fit a size 14 foot. I've tried a few other that don't fit after wearing them once. This is a regular feeling sock and not the thin hose type like other XL.
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Reviewed in the United States on April 21, 2026
T
Verified Purchase
The happy baker
Carnegie, US
★★★★★ 5
Great sock liners
Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here Note: Will shrink a little best to air dry
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Reviewed in the United States on April 16, 2026

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