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

|26 ratings

Key item features

  • Emission System Safeguard: Features Phosphorous Replacement Technology designed to help prevent catalytic converter and emission system failures, ensuring long-term vehicle health.
  • Enhanced Wear Defense: Delivers significantly enhanced wear protection, offering 6 times better performance than the established industry standard.
  • Optimal Burn-off Control: Provides exceptional oil burn-off protection that surpasses current industry standards, reducing consumption and maintaining oil levels.
  • Extended Service Life: Formulated to provide reliable protection for an extended period, allowing for up to 10,000 miles between oil changes.
  • Targeted Vehicle Design: Specially engineered as a full synthetic motor oil to meet the unique needs of vehicles with over 75,000 miles.
  • Comprehensive Critical Protection: Offers superior protection across 7 critical areas, including effective corrosion prevention, sludge control, and reduced timing and friction wear.
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Specs

Motor oil viscosity, 5W - 30Motor oil type, Full Synthetic Motor OilsBrand, CastrolRec. use, AutomotiveVolume capacity, 5 qtFeatures, Enhanced Wear Protection

About this item

Product details

Castrol GTX Full Synthetic High Mileage 5W-30 motor oil is an affordable full synthetic that is specifically designed for vehicles with over 75,000 miles. It's been engineered to provide Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle.
  • Phosphorous Replacement Technology helps prevent catalytic converter and emission system failure
  • 6X better wear protection than the industry standard
  • Exceptional oil burn-off protection exceeding industry standards*
  • Protects for up to 10,000 miles between oil changes**
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Motor oil viscosity

5W - 30

Motor oil type

Full Synthetic Motor Oils

Brand

Castrol

Rec. use

Automotive

Warnings

Customer ratings & reviews

4.9 out of 5 stars
stars
26 ratings11 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars96% (25)
  2. 4 stars0% (0)
  3. 3 stars4% (1)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 11 reviews

Jun 3, 2026
Reviewer name: Elizabeth
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great oil and delivery

Great oil at a great price. I was unable to get to the store but needed the oil. It was delivered to my home the day after the order was placed. I'm very pleased with both the product and the quickness of delivery.

Incentivized Review
Helpful?7CBUO2VTAB6116042263521
May 30, 2026
Reviewer name: jorge
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

great price and quality

good quality oil for the price

Incentivized Review
Helpful?7CBUO2VTAB6116042263521
Jul 18, 2026
Reviewer name: anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Value

Full synthetic works with my SUV

Incentivized Review
Helpful?7CBUO2VTAB6116042263521
Current price is $29.97$5.99/qt
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