GTX Full Synthetic HM

Castrol GTX Full Synthetic High Mileage Motor Oil 0W-20, 6 pack, 1 US qt bottles

|13 ratings
Item # 990440216
Current price is $29.98
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Smart summary

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  • Targeted Vehicle Use: This Castrol GTX full synthetic motor oil is specifically engineered for high-mileage vehicles, providing optimal performance for engines that have exceeded 75,000 miles.
  • Advanced Formula: Featuring proprietary Phosphorous Replacement Technology, this oil is formulated to actively reduce phosphorus levels within the engine.
  • Emission System Care: The reduction of phosphorus is crucial as it mitigates harm to catalytic converters, thereby helping to extend the operational life of the vehicle's emission system components.
  • Robust Engine Shield: It delivers enhanced safeguarding against multiple common issues, including engine wear, problematic leaks, and excessive oil burn-off in older engines.
  • Deposit Defense: The oil also actively works to prevent the formation of power-robbing deposits, contributing to sustained engine performance over time.
  • Convenient Packaging: The product is supplied as a convenient 6-pack, with each individual container holding one US quart of 0W-20 viscosity motor oil.
Castrol GTX Full Synthetic High Mileage Motor Oil 5W-30, 6 pack, 1 US qt bottles
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Castrol GTX Full Synthetic High Mileage Motor Oil 5W-30, 6 pack, 1 US qt bottles

4.8261 out of 5 Stars. 23 reviews
Castrol GTX Full Synthetic High Mileage Motor Oil 0W-20, 6 pack, 1 US qt bottles
Castrol GTX Full Synthetic High Mileage Motor Oil 0W-20, 6 pack, 1 US qt bottles
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About this item

Product details

Castrol GTX Full Synthetic High Mileage is a full synthetic oil engineered specifically for vehicles with over 75,000 miles. It is formulated with Phosphorous Replacement Technology, a proprietary additive that reduces the level of phosphorus, which is harmful to catalytic converters and can shorten emission system life. It provides enhanced protection against wear, leaks, oil burn off and power robbing deposits.
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Specifications

  • • 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**
  • • Also suitable for hybrids (0W grades)
  • * Based on API and ACEA volatility specifications
  • **Up to 10,000 miles or 1 year, whichever comes first
  • "Meets or exceeds the following specifications: • API SP/SN PLUS/SN • ILSAC GF-6 • Meets Ford WSS-M2C961-A1 "

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4.8 out of 5 stars
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Showing 1-3 of 4 reviews

Feb 2, 2026
Xuan Vo
5 out of 5 stars review

Verified Purchase

Good price

Good quality with good price

Helpful?38OMEHKO0WE016560601705
Nov 2, 2025
PATRICK
5 out of 5 stars review

Verified Purchase

Good stuff

Has worked well and easy to install.

Helpful?38OMEHKO0WE016560601705
Nov 20, 2025
Jose s
5 out of 5 stars review

Verified Purchase

Castrol motor oil

Very good price and quality

Helpful?38OMEHKO0WE016560601705

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