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🛢️ Keep your engine running smoother, longer — because your ride deserves the best.
Castrol GTX 20W-50 Conventional Motor Oil is a premium, 5-quart motor oil designed to extend engine life by preventing sludge buildup and oil breakdown. Featuring unique TriShield technology and custom additives, it offers superior thermal and deposit protection, making it ideal for vehicles in hotter climates. Trusted for over 50 years, it holds a 4.8-star rating from thousands of users and meets manufacturer recommendations for optimal engine performance.
| ASIN | B00JGQLSH8 |
| Best Sellers Rank | #9,798 in Automotive ( See Top 100 in Automotive ) #141 in Motor Oils |
| Brand | Castrol |
| Brand Name | Castrol |
| Compatible with Vehicle Type | Automobiles (generic) |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 2,720 Reviews |
| Flash Point | 218 Degrees Celsius |
| Global Trade Identification Number | 00079191000953 |
| Included Components | Motor Oil |
| Item Type Name | Motor Oil |
| Item Weight | 8.6 Pounds |
| Liquid Volume | 5 Quarts |
| Manufacturer | Castrol |
| Manufacturer Part Number | 03095 |
| Manufacturer Warranty Description | 12 Months |
| Package Information | Bottle |
| UPC | 079191000953 |
| Unit Count | 160.0 Fluid Ounces |
| Vehicle Service Type | Automobiles (generic) |
| Viscosity | 5W-20 sae_grade |
J**Y
Castrol GTX 20W-50 Conventional Motor Oil
Very good quality conventional motor oil, and a great price, as I prefer conventional over sythetic, and if you use motor oil according to the region and the climate you live in, your vehicle will last longer and you'll thank yourself for it in the long run. It's awful hot where we live in the south, and I have used heavier weight motor oils for over 30 years, and have never had an issue with it, hotter climate use a heavier weight, colder climate use a lighter weight. Excellent performance and lubrication, great value for the money, CASTROL has always produced a good quality motor oil.
J**E
It’s oil.
Good oil, decent price.
D**Y
Will buy again
Good stuff. Good price. Product arrived when scheduled with no leaks.
D**N
Excellent oil
Excellent oil for my all original 1974 Jeep CJ5 with a 304 V*!
W**N
Great for Hydro Gear Zero Turn Mower Transaxles
Castrol GTX 20w50 has been perfect for the oil changes in my Hustler zero turn mower's Hydro Gear ZT-3100 transaxles going on 16 years now. It meets/exceeds Hydro Gear's requirements, and Amazon's price is less than half the price of the other brands sold at the mower shops and online.
A**R
Nice
Good 👍
K**R
A good engine oil for older cars.
Have been using this for my old 1987 model car since 1990...I have resist switching to synthetic or semi synthetic because I do not want to take a chance on engine leaking. This was a problem on early synthetic and I read that the newer synthetic do not have this problem anymore, but why take a chance.. The 5 quarts are a good value when they are selling for around $25, but it seem the price has went up. Not sure I will buy them anymore if they are the same as buying the 1 qts, since I have to use a funnel for the 5 quarts due to clearance on my rear engine car.
A**R
Great product
Great product and price
Trustpilot
2 weeks ago
1 month ago