Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 Quarts
Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 Quarts
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Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 Quarts

1,019 ratings
Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 QuartsCastrol GTX High Mileage 10W 30 Synthetic Blend Motor Oil 5 Quarts3 pack Castrol GTX High Mileage 10W 30 Synthetic Blend Motor Oil 5 Quarts2 pack Castrol GTX High Mileage 10W 30 Synthetic Blend Motor Oil 5 Quarts4 pack Castrol GTX High Mileage 10W 30 Synthetic Blend Motor Oil 5 Quarts
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Key item features

  • Mileage Optimization: Specifically formulated for vehicles with over 75,000 miles, this synthetic blend motor oil helps extend engine life.
  • Emission Protection: Features Phosphorus Replacement Technology to reduce harmful phosphorus, protecting the catalytic converter and extending emission system life.
  • Sludge Defense: Offers superior dispersancy to effectively fight against sludge buildup within the engine.
  • Wear Prevention: Contains advanced additives that work to minimize engine wear, including protection against timing and friction wear.
  • Leak Reduction: Includes seal conditioners designed to help reduce and prevent leaks in high mileage engines.
  • Fuel Efficiency: Provides improved fuel economy in 10W-30 grades, meeting industry specifications.
  • Industry Compliance: Meets or exceeds API SP/SN PLUS/SN/SM and ILSAC GF-6 specifications for performance and protection.
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Customer ratings & reviews

4.8 out of 5 stars
stars
1,019 ratings362 reviews
How item rating is calculated
  1. 5 stars89% (908)
  2. 4 stars7% (73)
  3. 3 stars2% (17)
  4. 2 stars0% (5)
  5. 1 star2% (16)

Reviews summary

Pros

  • : Compatible with multiple vehicle types.
  • : Offers lower prices compared to similar products.
  • : The oil performs reliably and remains effective over time.
  • : Provides quiet performance in various engine types.
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Showing 1-3 of 362 reviews

Mar 9, 2026
Reviewer name: flora
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I love shopping on line at Walmart I had a store pick up when I got there to walmart in grantsboro nc called the number For my pick up a there was a recording saying the store was closed I had to go inside the store to get my item was giving a hard time until I talked to a young gentleman which helped me get my item at customer services bad experience

Helpful?d41f0210-688f-11f1-970f-13faca9cd0ac5212541314
May 12, 2026
Reviewer name: Steve
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Semi-Synthetic Value Added Quality

Been using this oil for 10's of years, and my 1995 Chev S-10 has 325,000 miles on it. Semi synthetic is all you need if you'll change it every 5-7k miles.

Helpful?d41f0210-688f-11f1-970f-13faca9cd0ac5212541314
Jun 30, 2016
Reviewer name: Paul
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good oil

I have used Castrol GTX Synthetic for over 30 years and now Castrol High Mileage GTX Synthetic Blend. I recently bought a 1995 Toyota pickup with about 80000 original miles. Toyota pickup owners will tell you that these trucks will last for years if you keep up the regularly scheduled maintenance. I shopped around and Walmart beat the auto parts stores price by several dollars without rebates.

Helpful?d41f0210-688f-11f1-970f-13faca9cd0ac5212541314
Current price is $23.9715.0 ¢/fl oz
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