Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Hero image 0 of Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts, 0 of 12
100+ bought since yesterday, try a subscriptionOverall pick
Visit the Castrol Store

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

4.8 stars out of 2065 reviews
(4.8)|
2,065 ratings
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 QuartsCastrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts6 pack Castrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts4 pack Castrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts2 pack Castrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts5 pack Castrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts3 pack Castrol GTX High Mileage 5W 30 Synthetic Blend Motor Oil 5 Quarts
Pack Size:Single
Car
Check if this fits your vehicle

Key item features

  • Engine Longevity: Formulated as a synthetic blend motor oil, it is specifically designed for vehicles with over 75,000 miles, helping to extend overall engine life.
  • Sludge Defense: Features superior dispersancy to actively combat and prevent the buildup of harmful engine sludge.
  • Leak Reduction: Contains specialized seal conditioners that work to reduce and prevent oil leaks in high-mileage engines.
  • Emission Protection: Utilizes Phosphorus Replacement Technology to reduce harmful phosphorus, protecting the catalytic converter and extending emission system life.
  • Wear Minimization: Incorporates advanced additives engineered to minimize engine wear across critical components.
  • Fuel Efficiency: Offers improved fuel economy in 5W-20, 5W-30, and 10W-30 grades, exceeding industry specifications.
  • Industry Compliance: Meets or exceeds multiple industry specifications including API SP/SN PLUS/SN/SM, ILSAC GF-6, Ford WSS-M2C946-B1, and Ford WSS-M2C961-A1.
Generated by AI
Current price is $20.9713.1 ¢/fl oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $20.97
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $20.97

How do you want your item?

Try 30 days for just $1! Choose annual plan at checkout.
How do you want your item?
Columbus, 43215
Arrives by Today
.
Order within 2 hr 12 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
walmart plus

Try Walmart+ for just $1 & get a year for $75

T&C apply.
Claim offer now

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars2,065 ratings465 reviews
How item rating is calculated
  1. 5 stars88% (1,826)
  2. 4 stars7% (137)
  3. 3 stars2% (37)
  4. 2 stars1% (11)
  5. 1 star3% (54)

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 465 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?08364210-0b0d-11f1-8e30-63e7131886fb5262767012
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?08364210-0b0d-11f1-8e30-63e7131886fb5262767012
Jan 7, 2026
spaetzle
Top Reviewer
Item details
Size: 160
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?08364210-0b0d-11f1-8e30-63e7131886fb5262767012