(6 pack) Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
(6 pack) Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
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(6 pack) Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts

4.8 stars out of 2034 reviews
(4.8)|
2,034 ratings
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Key item features

  • Emission System: Features Phosphorus Replacement Technology to reduce harmful phosphorus, protecting the catalytic converter and extending emission system life.
  • Sludge Defense: Provides superior dispersancy to actively fight against sludge buildup, maintaining engine cleanliness.
  • Leak Reduction: Contains seal conditioners specifically designed to help reduce and prevent oil leaks in high-mileage engines.
  • Engine Longevity: Formulated with advanced additives that minimize engine wear and offer exceptional oil burn-off protection, exceeding industry standards.
  • Fuel Efficiency: Delivers improved fuel economy in 5W-20, 5W-30, and 10W-30 grades compared to industry specifications.
  • Broad Compatibility: Meets or exceeds key industry specifications including API SP/SN PLUS/SN/SM, ILSAC GF-6, Ford WSS-M2C946-B1, and Ford WSS-M2C961-A1.
  • High-Mileage Protection: Specially formulated synthetic blend motor oil for vehicles with over 75,000 miles, offering superior protection in 7 critical areas including corrosion prevention and timing wear.
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Current price is $125.8213.1 ¢/fl oz
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Wichita Falls, 76308
Arrives by Mon, Feb 16
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This item includes:

  • 6-pack of Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
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Customer ratings & reviews

4.8 out of 5 stars
stars2,034 ratings461 reviews
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Reviews summary

Pros
  • : Offers a lower price point compared to others.
  • : Made with premium materials for excellent performance.
  • : Runs smoothly with high mileage.
  • : Operates quietly with minimal engine noise.
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Showing 1-3 of 461 reviews

Dec 4, 2025
Drew
Item details
Size: 160
5 out of 5 stars review

Verified Purchase

Best Oil For High Milage Engines

I bought my 01 Suburban in 2011 with 150,000ish miles on it. Since I've owed the truck this is the only oil I've but in it. I'll be doing another oil change this weekend and wouldn't think of putting in anything else inside Betsy Ross's engine. The ole' girl is at 312,526 miles as of today and still running strong.

Helpful?fd7ea6b0-d40b-11f0-ac61-41720b250fb915361952969
Dec 29, 2025
D
Top Reviewer
Item details
Size: 160
5 out of 5 stars review

Verified Purchase

Great quality at the best price around.

There's no better quality than Castrol oil. I've used it for decades and its never let me down. Foreign or domestic vehicles are both well protected with Castrol oil.

Helpful?fd7ea6b0-d40b-11f0-ac61-41720b250fb915361952969
Jan 7, 2026
spaetzle
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Noticed a Decrease in Engine Noise with this Oil

I bought this oil for my 2017 Kia Sportage that has 80,000 miles on it. The oil appears to give my car a smooth operation and I have noticed a decrease in engine noise. The bottle is quite large so I use a funnel to avoid any spillage.

Helpful?fd7ea6b0-d40b-11f0-ac61-41720b250fb915361952969