Severe driving conditions such as heavy traffic combustion contaminants harsh weather conditions and exceeding oil change intervals can all cause the build-up of a thick tar-like substance called sludge. If untreated it can rob an engine of power and ultimately its life.Castrol GTX with its Double Action formula is formulated to extend the life of your engine by preventing the harmful build-up of sludge reduce oil deposits and protect your engine.
Severe driving conditions such as heavy traffic combustion contaminants harsh weather conditions and exceeding oil change intervals can all cause the build-up of a thick tar-like substance called sludge. If untreated it can rob an engine of power and ultimately its life.Castrol GTX with its Double Action formula is formulated to extend the life of your engine by preventing the harmful build-up of sludge reduce oil deposits and protect your engine.
in 1 offers
last seen 5 Sept 2026
The lowest price we last saw for Castrol GTX 20W-50 Engine Oil 4 Litre, Grey was $27.78 at Repco.co.nz (last seen 5 Sept 2026). Prices may have changed since.
The all-time low we recorded was $21.59 on 17 June 2023.
Prices last updated 5 Sept 2026.
Castrol GTX 20W-50 Engine Oil 4 Litre, Grey
Severe driving conditions such as heavy traffic combustion contaminants harsh weather conditions and exceeding oil change intervals can all cause the build-up of a thick tar-like substance called sludge. If untreated it can rob an engine of power and ultimately its life.Castrol GTX with its Double Action formula is formulated to extend the life of your engine by preventing the harmful build-up of sludge reduce oil deposits and protect your engine.
Severe driving conditions such as heavy traffic combustion contaminants harsh weather conditions and exceeding oil change intervals can all cause the build-up of a thick tar-like substance called sludge. If untreated it can rob an engine of power and ultimately its life.Castrol GTX with its Double Action formula is formulated to extend the life of your engine by preventing the harmful build-up of sludge reduce oil deposits and protect your engine.
Last updated at 05/09/2026 13:47:37
Castrol GTX 20W-50 Engine Oil 4L - 3413900
| Product dimensions | 12 x 12 x 12 cm; 4 Kilograms |
| Country of origin | Malaysia |
| Viscosity | 20w-50 |
| Liquid volume | 4 Litres |
| Vehicle service type | Car |
Castrol GTX 20W-50 Engine Oil 4L - 3413900
| Product dimensions | 12 x 12 x 12 cm; 4 Kilograms |
| Country of origin | Malaysia |
| Viscosity | 20w-50 |
| Liquid volume | 4 Litres |
| Vehicle service type | Car |
