Castrol GTX 5W-30 RN17 
Superior sludge protection to help extend engine life
 
Prices exclude VAT. Delivery for Orders Of £500+ is free of Charge to UK Mainland postcodes.
Pack sizes available to buy: 12 x 1ltr, 4 x 5ltr, 20ltr & 208ltr.
Click the 'Pack Sizes' dropdown menu to see the pack size currently available and the online prices.
 
Description of Castrol GTX 5W-30 RN17
Drivers and mechanics have trusted Castrol GTX for over 50 years to help extend engine life.
 
Castrol GTX’s 3X-Clean formula has been developed to fight the three main causes of engine sludge: heat, contaminants and short trips. By cleaning away existing sludge and creating a barrier that helps stop deposits from forming, Castrol GTX keeps engines cleaner for longer, 35% cleaner than industry standards.*  This means drivers and their vehicles enjoy more years together.
 
Castrol GTX:  helps extend engine life
 
Application of Castrol GTX 5W-30 RN17 
Castrol GTX is designed for all car types.
 
Advantages of Castrol GTX 5W-30 RN17 
Castrol GTX 5W-30 RN17 provides:
Delivers superior protection against sludge* caused by pollutants, heat, and frequent short trips
Provides advanced protection against viscosity and thermal breakdown
Demonstrates exceptional protection against high-temperature deposits
Contains premium synthetic technology base oils and anti-wear additives
 
*Weighted average benefit of 81% of GTX 2021 global sales volume in Seq VG or VH industry sludge test, compared to specification claimed on pack.