
DUCKHAMS LONG LIFE COOLANT Green
Coolant, green, ASTM D3306, BS 6580:2010. Free shipping nationwide or store pickup.
Duckhams Long Life Coolant Green is a super-concentrated ethylene glycol radiator coolant with organic acid technology (OAT) for gasoline, diesel and gas engines. The maker says it mixes with clean water from 1:1 to 1:5 and meets ASTM D3306.
Radiators in cars, pickups and trucks with gasoline, diesel or gas engines that use an OAT coolant.
| Category | Coolant |
| Color | Green |
| Standards | ASTM D3306, BS 6580:2010 |
| Pack sizes | 1 L |
Home delivery nationwide
ShippingArrives in 2–7 days
Store pickup
5 storesChoose a store and date when you order, then pick it up at the store.
Reserve now, pay in store
No deposit — reserve online and we hold your order for 7 days. Pay at the store when you pick it up.
Pay online
Scan a PromptPay QR or transfer to our company account, then upload the slip
For home delivery and store pickupTax invoice
Full tax invoice available for every order
LONG LIFE COOLANT Green FAQ
Do I need to mix Duckhams Long Life Coolant with water?
Yes. It is a concentrate, and the maker says to mix it with clean water from 1:1 to 1:5 (1 part coolant to 1–5 parts water). Use clean water and the ratio on the label or in your owner's manual.
What vehicles is it for?
The maker says it suits gasoline and diesel passenger cars, light commercial vehicles, heavy-duty diesels and gas engines, and protects both aluminum and copper radiators.
Is the green different from the pink?
The maker lists the same standards and properties for green, pink and blue. When topping up, use the same color and type already in your radiator, and drain the old coolant first if you switch brand or type.
When should coolant be changed?
Follow the interval in your owner's manual and check the reservoir level regularly. If the level drops quickly, have the system checked for leaks.
Can I open the radiator cap when the engine is hot?
No. Never open the radiator cap on a hot engine, because the coolant is hot and under pressure and can cause burns. Wait until the engine cools down.
Is shipping free?
Yes. We ship free nationwide, or you can pick it up at a Subphaisal branch.




