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

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
Pack Size:Single
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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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Current price is $20.9713.1 ¢/fl oz
Price when purchased online
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Customer ratings & reviews

4.8 out of 5 stars
stars938 ratings358 reviews
How item rating is calculated
5.0
4.7
5.0
5.0
  1. 5 stars89% (835)
  2. 4 stars7% (70)
  3. 3 stars1% (14)
  4. 2 stars1% (5)
  5. 1 star1% (14)

Reviews summary

Pros

  • : Made to last with easy dispensing.
  • : Offers affordable options compared to others.
  • : Operates effectively with high mileage and various engine types.
  • : Designed for high mileage vehicles.
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Showing 1-3 of 358 reviews

Mar 9, 2026
flora
Item details
Multipack quantity: 1
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?a4e90e10-318e-11f1-ada8-0747a5b32d7d5212541314
May 12, 2026
Steve
Item details
Multipack quantity: 1
Multipack quantity: 1
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?a4e90e10-318e-11f1-ada8-0747a5b32d7d5212541314
Dec 10, 2025
doug11c
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Slow is smooth! And Smooth is FAST

I love this oil! I've used it in almost every vehicle I've owned when the mileage has been 90'000 and above! It keeps my vehicles running longer and smoother! Oil change intervals are not as soon, and seems to increase performance some! Again all of these oils are the same, even made by the same companies, just put different names on the labels! I highly recommend Castrol GTX, I go with what I've used and what I know, and I know this is one of the best! Buy it!

Helpful?a4e90e10-318e-11f1-ada8-0747a5b32d7d5212541314