Castrol® GTX® 20W-50 is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine's vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life.
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

Motor oil viscosity
20W - 50
Motor oil type
Conventional Motor Oils
Brand
Castrol
Rec. use
Automotive
Volume capacity
5 qt
Features
Extended Engine Life
Has high mileage additives
N
Diesel fuel compatible
N
Vehicle type
Car
Vehicle fitment type
Specific
Automotive parts division
Performance
Material
Motor Oil
Size
160
Model
15FD5D
Is bulk
N
Has written warranty
No
Count per pack
1
Product net content uom
Fluid Ounce
Product net content parent
160 Fluid Ounces
Assembled product weight
9.5 lb