
CASTROL MAGNATEC 5W-30
Full synthetic engine oil for gasoline engines, API SP, ACEA A3/B4. Oil change labor included in store.
Castrol MAGNATEC 5W-30 is a 100% synthetic oil for gasoline cars, including NGV/LPG conversions, direct-injection engines and hybrids. It is rated API SP and ACEA A3/B4. The maker says its Clings-Locks-Protects technology protects the engine from the moment you start it.
Gasoline cars and SUVs, NGV/LPG conversions and hybrids whose owner's manual calls for 5W-30.
| Viscosity | SAE 5W-30 |
| Oil type | Full synthetic |
| Standards | API SP, ACEA A3/B4 |
| Engine | Gasoline |
| Change interval (our guideline) | 10,000 km or 6 months, whichever comes first |
| Pack sizes | 1 L · 4 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.
Pay online
Scan a PromptPay QR or transfer to our company account, then upload the slip
For home delivery and in-store oil changesTax invoice
Full tax invoice available for every order
MAGNATEC 5W-30 FAQ
Can I use Castrol MAGNATEC 5W-30 in a hybrid?
Yes. The maker says it suits regular gasoline, direct-injection and hybrid engines. Check that your owner's manual calls for 5W-30.
Can I use it with an NGV or LPG kit?
Yes. The maker says it suits gasoline engines and cars running on NGV (CNG) or LPG.
How often should I change Castrol MAGNATEC 5W-30?
We recommend every 10,000 km or 6 months, whichever comes first. If your owner's manual calls for a shorter interval, follow the manual.
What is Clings-Locks-Protects?
It is Castrol MAGNATEC's technology. The maker says its molecules stay on engine parts even when the engine is off and lock into a protective layer, so the engine is protected from start-up and through warm-up.
How is MAGNATEC 5W-30 different from MAGNATEC 10W-40?
MAGNATEC 5W-30 is 100% synthetic, rated API SP and ACEA A3/B4. MAGNATEC 10W-40 is semi-synthetic, rated API SP, with a thicker grade. Pick the viscosity your owner's manual lists.
Does the price include the oil change?
Yes. The price includes the oil change at any of our 5 Subphaisal branches, or free shipping anywhere in Thailand at the same price.




