Verdict overview
- worth the money 9.9
- Long life 9.9
- Flavor 9.8
- distance 9.9
- Sheerness 9.6
Pros
Extends emission system life.
Reduces engine wear effectively.
Minimizes oil consumption.
Cons
Thicker conventional oil preferred.
Tech specs
product dimensions | 11.6 x 9 x 4.5 inches |
item weight | 0.01 ounces |
viscosity | 10W-40 |
manufacturer part number | 03111C |
customer reviews | 4.8 4.8 out of 5 stars 3,134 ratings 4.8 out of 5 stars |
model | 03111 |

Product Overview
At Castrol, they understand the importance of keeping your engine running smoothly and efficiently, which is why they developed the Castrol GTX High Mileage Synthetic Blend Motor Oil. This oil is designed to provide superior protection and performance for high mileage engines. It contains advanced additives that help reduce engine wear and seal conditioners that help reduce leaks. The superior detergency helps prevent deposit build up and the superior oil burn off protection versus leading conventional oils make this motor oil an ideal choice for drivers who want to keep their engines running strong.
This oil has a viscosity of 10W 40 and comes in a 160 fluid ounce bottle. It exceeds ILSAC GF 5 and API SN standards and is suitable for use in both gasoline and diesel engines. It has been designed to provide maximum protection against wear, corrosion, sludge build up, oxidation, thermal breakdown, and viscosity loss. Not only does it protect your engine from the elements, but it also helps improve fuel economy by reducing friction between moving parts.

For drivers with high mileage cars or trucks, this oil can be a great investment as it helps extend the life of your engine by protecting it from wear and tear over time. The superior detergency helps prevent deposit build up while the advanced additives help reduce engine wear. It also provides excellent sheerness which prevents oil from leaking out of your engine. Additionally, its value for money makes it a great choice compared to other synthetic blends on the market today.
Overall, Castrol GTX High Mileage Synthetic Blend Motor Oil is an excellent choice for drivers looking for superior protection for their high mileage vehicles. The superior detergency helps prevent deposit build up while the advanced additives help reduce engine wear and extend its life span. With its exceptional value for money compared to other synthetic blends on the market today, this motor oil is an ideal choice for anyone looking to get maximum performance out of their vehicle s engine while also saving money over time.
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