
DUCKHAMS QX 8 5W-30
Full synthetic engine oil for diesel engines, ACEA A3/B4, API SN/SL. Oil change labor included in store.
Duckhams QX 8 5W-30 is a 100% fully synthetic diesel engine oil for high-performance diesel SUVs, pickups, vans and cars with modern common-rail and turbo engines. The maker says it meets ACEA A3/B4 and API SN, so it also works in gasoline engines.
High-performance diesel SUVs, pickups, vans and cars with common-rail and turbo engines (such as CDI and TDI), plus gasoline engines, that call for 5W-30.
| Viscosity | SAE 5W-30 |
| Oil type | Full synthetic |
| Standards | ACEA A3/B4, API SN/SL |
| Engine | Diesel |
| Change interval (our guideline) | 10,000 km or 6 months, whichever comes first |
| Pack sizes | 1 L · 6 L |
Oil change in store
5 storesEngine oil prices include the oil change at any of our 5 Subphaisal stores.
Home delivery nationwide
ShippingArrives in 2–7 days
Reserve now, pay in store
No deposit — reserve online and we hold your order for 7 days. Pay at the store on the day of your oil change.
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QX 8 5W-30 FAQ
What vehicles is Duckhams QX 8 5W-30 for?
Engines that call for 5W-30. The maker says it suits high-performance diesel SUVs, pickups, vans and cars with modern common-rail and turbo engines, and its ACEA A3/B4 rating means it also works in gasoline engines.
How often should I change Duckhams QX 8 5W-30?
We recommend every 10,000 km or 6 months, whichever comes first. If your owner's manual says sooner, follow the manual.
What does ACEA A3/B4 mean?
ACEA A3/B4 is a European oil standard for high-performance gasoline (A3) and diesel (B4) engines, including direct-injection diesels. Oils with this rating can be used in both gasoline and diesel cars.
Can I use QX 8 5W-30 with a DPF?
The maker does not say it is designed for DPF-equipped engines, and ACEA A3/B4 is not a low-ash category. If your vehicle has a DPF or the manual calls for ACEA C2/C3, choose an oil that matches the manual.
How is QX 8 different from QX 9 and QX 7?
QX 8 5W-30 is a 100% fully synthetic ACEA A3/B4 diesel oil. QX 9 5W-30 is 100% fully synthetic, rated API CK-4 and ACEA E9 for engines with DPF/SCR, while QX 7 10W-30 is a semi-synthetic API CI-4 oil. Follow the grade and standard in your manual.
Does the price include the oil change?
Yes. The price includes the oil change at any of our 5 Subphaisal branches, or free shipping nationwide at the same price.




