Castrol GTX Diesel 15W-40 is a low ash, multi-grade, diesel engine oil specially formulated for all 4-stroke diesel engines, particularly in naturally aspirated and turbo charged 4WD and light commercial vehicles. Castrol GTX Diesel extends diesel engine life in cars and light commercial vehicles, providing extra protection against diesel engine problems that your engine faces everyday. Castrol GTX Diesel provides exceptional oil consumption control and engine protection wear benefits. Castrol GTX Diesel provides added protection against soot build-up, to help prevent excessive oil thickening and soot related wear. Castrol GTX Diesel 15W-40 meets API CH-4/SJ. It is suitable for cars and light commercial vehicles that specify API CD, CF, CF-4 or CH-4. It is not recommended for use in vehicles fitted with Diesel Particulate Filters or petrol engines with catalytic converters. To find the oil type and viscosity suggested for your vehicle; either check with your manufacturer, your local mechanic or head in-store and talk to one of our friendly team.
Castrol GTX Diesel 15W-40 is a low ash, multi-grade, diesel engine oil specially formulated for all 4-stroke diesel engines, particularly in naturally aspirated and turbo charged 4WD and light commercial vehicles. Castrol GTX Diesel extends diesel engine life in cars and light commercial vehicles, providing extra protection against diesel engine problems that your engine faces everyday. Castrol GTX Diesel provides exceptional oil consumption control and engine protection wear benefits. Castrol GTX Diesel provides added protection against soot build-up, to help prevent excessive oil thickening and soot related wear. Castrol GTX Diesel 15W-40 meets API CH-4/SJ. It is suitable for cars and light commercial vehicles that specify API CD, CF, CF-4 or CH-4. It is not recommended for use in vehicles fitted with Diesel Particulate Filters or petrol engines with catalytic converters. To find the oil type and viscosity suggested for your vehicle; either check with your manufacturer, your local mechanic or head in-store and talk to one of our friendly team.
Castrol GTX Diesel 15W-40 is a low ash, multi-grade, diesel engine oil specially formulated for all 4-stroke diesel engines, particularly in naturally aspirated and turbo charged 4WD and light commercial vehicles. Castrol GTX Diesel extends diesel engine life in cars and light commercial vehicles, providing extra protection against diesel engine problems that your engine faces everyday. Castrol GTX Diesel provides exceptional oil consumption control and engine protection wear benefits. Castrol GTX Diesel provides added protection against soot build-up, to help prevent excessive oil thickening and soot related wear. Castrol GTX Diesel 15W-40 meets API CH-4/SJ. It is suitable for cars and light commercial vehicles that specify API CD, CF, CF-4 or CH-4. It is not recommended for use in vehicles fitted with Diesel Particulate Filters or petrol engines with catalytic converters. To find the oil type and viscosity suggested for your vehicle; either check with your manufacturer, your local mechanic or head in-store and talk to one of our friendly team.
Castrol GTX Diesel 15W-40 is a low ash, multi-grade, diesel engine oil specially formulated for all 4-stroke diesel engines, particularly in naturally aspirated and turbo charged 4WD and light commercial vehicles. Castrol GTX Diesel extends diesel engine life in cars and light commercial vehicles, providing extra protection against diesel engine problems that your engine faces everyday. Castrol GTX Diesel provides exceptional oil consumption control and engine protection wear benefits. Castrol GTX Diesel provides added protection against soot build-up, to help prevent excessive oil thickening and soot related wear. Castrol GTX Diesel 15W-40 meets API CH-4/SJ. It is suitable for cars and light commercial vehicles that specify API CD, CF, CF-4 or CH-4. It is not recommended for use in vehicles fitted with Diesel Particulate Filters or petrol engines with catalytic converters. To find the oil type and viscosity suggested for your vehicle; either check with your manufacturer, your local mechanic or head in-store and talk to one of our friendly team.
Last updated at 03/21/2026 18:45:21
Castrol Mineral GTX Diesel Engine Oil 15W40 5L Superior Cleaning Power
Free delivery
GTX DIESEL 15W-40 5L
Free delivery by 2 Apr
Castrol GTX 15W-40 Diesel Engine Oil 5L
originally posted on supercheapauto.com.au
Suitable for the Commodores V6 motors just not for VZ onwards. Can 20w-50 if you think the older engine needs it but il needs to flow and this is the right oil where they are happy enough when changed every 5,000kms not every 10,000kms just letting you know.
originally posted on repco.co.nz
15W-40 is the recommended specification for my diesel engine. API CH-4 (and above) is what i need. Can't go wrong with Castrol, a proven high quality and in-spec product.I purchase the bulk of my engine-oils from Repco (whilst on special and/or catalogue deals), Repco offer good price's along with great service in-store and/or online.
originally posted on supercheapauto.com.au
It's my personal opinion, based on my experience and observations, that older Toyota petrol vehicles (i.e. Camry 1997-2002, Corolla 2002-2007) perform very well using this oil. This product is the replacement of the Castrol GTX 3 motor oil... the former product in the red-coloured container. This product has very similar specifications to that of GTX Professional 15W-40 used by many quality workshops and dealerships across Australia.It’s a well-priced oil for those who change their oil regularly and intend on using a good quality motor oil at a reasonable price. Always refer to your manufacturer's handbook for recommended oil specification and viscosity.
| Viscosity | 15w-40 |
| Liquid volume | 5 Litres |
| Vehicle service type | Car |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
Castrol Mineral GTX Diesel Engine Oil 15W40 5L Superior Cleaning Power
Free delivery
GTX DIESEL 15W-40 5L
Free delivery by 2 Apr
Castrol GTX 15W-40 Diesel Engine Oil 5L
Suitable for the Commodores V6 motors just not for VZ onwards. Can 20w-50 if you think the older engine needs it but il needs to flow and this is the right oil where they are happy enough when changed every 5,000kms not every 10,000kms just letting you know.
15W-40 is the recommended specification for my diesel engine. API CH-4 (and above) is what i need. Can't go wrong with Castrol, a proven high quality and in-spec product.I purchase the bulk of my engine-oils from Repco (whilst on special and/or catalogue deals), Repco offer good price's along with great service in-store and/or online.
It's my personal opinion, based on my experience and observations, that older Toyota petrol vehicles (i.e. Camry 1997-2002, Corolla 2002-2007) perform very well using this oil. This product is the replacement of the Castrol GTX 3 motor oil... the former product in the red-coloured container. This product has very similar specifications to that of GTX Professional 15W-40 used by many quality workshops and dealerships across Australia.It’s a well-priced oil for those who change their oil regularly and intend on using a good quality motor oil at a reasonable price. Always refer to your manufacturer's handbook for recommended oil specification and viscosity.
Excellent product, I used to use Penrite oils before I tried castrol GTX Ultraclean, and I have never looked back. I just sense the motor feels like it’s more happy and it’s more than just oil, it’s the perfect recipe for 15w/40. Especially with the motors running kilometres with few hundred thousands. Would definitely 100% recommend this product and most certainly combining a trusted Rycooil filter. Thanks again super cheap auto for your prices when on sale. Keep up the great work.
My 2006 Toyota Corolla spare car that has been with us since new, started using a bit of oil with the Magnatec 10/40 oil I was using previously. I changed to using GTX UltraClean 15/40 and the last couple of services there has been no oil loss at all. This oil seems to be better for older cars with moderate Km's
I use this in my military land rovers for engine, gearbox, and transfer case. In part due to the perpensity for gearbox and transfer to share oil, bit I add some teflon additive.These old boxes don't like gear oil as it can damage the oil pump and synchros.9 years on and no issue.
| Viscosity | 15w-40 |
| Liquid volume | 5 Litres |
| Vehicle service type | Car |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
