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Castrol GTX 20W-50 Conventional Motor Oil, 5 Quarts
AUD 55
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Castrol® GTX® has been helping to extend engine life for over 50 years.
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What Stands Out
Product Details
- Advanced protection against viscosity and thermal breakdown
- Superior protection against engine sludge
- Premium quality base oils and anti-wear additives to help extend the life of your engine
- Helps minimize oil consumption
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6
- Ultra low friction to improve gas mileage; Bottle Color: White
- Exceeds ILSAC GF-5, API SN
| Container Type | Bottle |
| Compatible with Vehicle Type | Automobiles (generic) |
| Flash Point | 218 Degrees Celsius |
| Viscosity Level | Medium to High |
| Automotive Fit Type | Universal Fit |
| SAE J300 Viscosity Grade | 20W-50 |
| Liquid Volume | 5 Quarts |
| Brand Name | Castrol |
| Manufacturer Part Number | 03095 |
| UPC | 079191000953 |
| Global Trade Identification Number | 00079191000953 |
| Manufacturer | Castrol |
| Size | 5 Quarts |
| Model Number | 03095 |
| Item Weight | 8.6 Pounds (3.9 kg) |
| Item Type Name | Motor Oil |
| Included Components | Motor Oil |
| Unit Count | 160.0 Fluid Ounces |
| Brand | Castrol |
| Package Information | Bottle |
| Vehicle Service Type | Automobiles (generic) |
What's in the box
Motor Oil
Who Should Buy?
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Older Vehicles
Ideal for classic cars and older models that require thicker oil for optimal engine protection and performance.
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High Mileage
Designed for engines with over 75,000 miles, providing extra protection and conditioning for worn engine parts.
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Frequent Stop-and-Go
Excellent for urban driving conditions where engines experience heavy stop-and-go activity and need strong protection.
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Modern Engines
Not suitable for modern engines designed for low-viscosity synthetic oils, which offer better fuel efficiency and protection.
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Extreme Conditions
Lacks the performance needed for engines facing extreme temperatures or heavy-duty usage, where high-performance oils are needed.
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Fuel Efficiency
This oil may not maximize fuel efficiency compared to synthetic options, making it less ideal for economy-focused drivers.
Product Description
Customer Questions & Answers
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Question:
What type of vehicles is Castrol GTX 20W-50 Conventional Motor Oil suitable for?
Answer: Castrol GTX 20W-50 Conventional Motor Oil is primarily designed for older vehicles and those with high mileage. Its formulation helps reduce engine wear, improve performance, and extend engine life, making it suitable for classic cars, muscle cars, and trucks. This oil is beneficial for engines that may consume more oil due to age or wear, ensuring they continue running smoothly. -
Question:
What are the benefits of using Castrol GTX 20W-50?
Answer: The key benefits of using Castrol GTX 20W-50 include enhanced engine cleanliness, reduced engine wear, and improved lubrication under high temperatures. This oil's special additives help keep your engine free from harmful deposits while also providing superior viscosity stability, ensuring optimal performance and protection even in challenging driving conditions. -
Question:
How often should I change Castrol GTX 20W-50 Conventional Motor Oil?
Answer: It is recommended to change Castrol GTX 20W-50 Conventional Motor Oil based on your vehicle's manufacturer's guidelines, which typically suggest intervals between 3,000 to 5,000 miles for conventional oils. However, if you frequently drive in stop-and-go traffic or under severe conditions, more frequent changes might enhance engine performance and protection. -
Question:
Is Castrol GTX 20W-50 compatible with synthetic oils?
Answer: Yes, Castrol GTX 20W-50 can be mixed with synthetic oils if necessary. However, for optimal performance, it is better to stick with one type of oil. Using conventional oil in a system that has been running synthetic can affect performance, as each type has different additives and performance characteristics. -
Question:
Is Castrol GTX 20W-50 suitable for high-performance engines?
Answer: Castrol GTX 20W-50 can be a good choice for certain high-performance engines, particularly those that are older or designed to run on higher viscosity oils. Its robust formulation provides the necessary lubrication and protection under high-stress conditions, helping to maintain engine integrity even in demanding scenarios. -
Question:
What is the viscosity rating of Castrol GTX 20W-50?
Answer: The viscosity rating of Castrol GTX 20W-50 signifies its thickness and flow characteristics at different temperatures. The '20W' indicates its performance in cold temperatures, while the '50' reflects its performance at higher temperatures, ensuring that your engine receives the right balance of lubrication throughout its operating range. -
Question:
Can Castrol GTX 20W-50 be used in diesel engines?
Answer: While Castrol GTX 20W-50 is primarily formulated for gasoline engines, it may not be suitable for diesel engines without consulting the manufacturer's specifications. Diesel engines often require specific oils that address their greater stress and temperature variations; hence, it's advisable to choose an oil specifically designed for diesel applications to ensure optimum performance. -
Question:
How does Castrol GTX 20W-50 help with engine noise?
Answer: Castrol GTX 20W-50 can help reduce engine noise by providing excellent lubrication to the engine components. This oil creates a protective film that minimizes metal-to-metal contact, which can lead to noise. Many users have reported quieter operation after switching to this oil, particularly in older vehicles where wear and tear have increased engine noise. -
Question:
What applications is Castrol GTX 20W-50 best suited for?
Answer: Castrol GTX 20W-50 is best suited for conventional internal combustion engines, especially those in older cars, trucks, and classic vehicles. It's particularly effective for drivers who engage in heavy-duty use such as towing, plowing, or frequent idling, allowing these engines to perform reliably under such conditions. -
Question:
Where can I buy Castrol GTX 20W-50 Conventional Motor Oil, 5 Quarts?
Answer: You can buy Castrol GTX 20W-50 Conventional Motor Oil, 5 Quarts from Ubuy in Australia. Ubuy offers a user-friendly platform with a variety of products, making it a convenient choice for purchasing automotive supplies like motor oil.
Product Price History
Important information
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AUD 55
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Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Features & Benefits
- Premium conventional motor oil designed for engine longevity.
- Prevents harmful sludge build-up and oil splatter formation.
- Offers advanced protection against viscosity and thermal breakdown.
- Contains premium base oils and anti-wear additives.
- Helps minimize oil consumption, enhancing efficiency.
- Meets or exceeds API and ILSAC specifications.








