Summary
ACDelco Green OEM G-48 Coolant (Australia/NZ) coolant data, from ACDelco's own source. ACDelco Green OEM G-48 Coolant (Australia/NZ) is a concentrate HOAT ethylene glycol-based coolant listed by General Motors (ACDelco). The manufacturer's page we checked does not list OEM spec codes. Stated service life: 8 Year or 500,000km.
What to buy
We have not verified an Amazon listing for this product. See the retailers the manufacturer names.
Where to buyConfirm the specification in your owner’s manual before buying. Product examples are not a fitment guarantee.
Specifications
| Brand | ACDelco |
|---|---|
| Maker | General Motors (ACDelco) |
| Product | ACDelco Green OEM G-48 Coolant (Australia/NZ) |
| Part numbers (as published) | 19380141 |
| Sizes (as published) | 5 Litre |
| Chemistry | HOAT |
| Base glycol | Ethylene glycol |
| Colour | Green |
| Premix or concentrate | Concentrate |
| Service life claim | 8 Year or 500,000km |
| Free-of claims | phosphate-free |
| Not published by the maker | OEM / industry specs, ASTM standards, Freeze point, Datasheet. Check the product label or ask the manufacturer. |
| Source | manufacturer page |
| Last checked | 22 October 2026 |
Specs and approvals listed by the manufacturer
No OEM approval or spec codes are published on the source we checked. That does not mean the product fails any spec. It means the manufacturer did not list one there. Check the product label or ask the manufacturer.
Compatibility notes
- Chemistry is listed as HOAT. Mixing different chemistries can shorten coolant life. See OAT vs HOAT vs IAT and use the mixing checker before topping up.
- Colour is listed as Green. Colour is a dye, not a spec, so two coolants of the same colour can be different chemistries. See coolant colours explained.
- Sold as a concentrate: dilute with distilled or deionised water as the label directs. See premix vs concentrate and the freeze and boil calculator.
Note: Sold in Australia and New Zealand. The catalogue says the full OEM approval list is in separate ACDelco flyers.
Where to buy
We did not find a retailer link on the manufacturer's page that we could check. Try the manufacturer's own site: ACDelco product page.
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Vehicle makes linked to this coolant
These make pages explain what each vehicle maker specifies. The reason each one links here is shown next to it. This is not a fitment claim, so check your owner's manual.
- What coolant GM / Chevrolet specifies (genuine coolant sold under this maker's parts brand)
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See every ACDelco product we list, with the chemistries and spec codes the maker names, on the ACDelco coolant brand page.
See all ACDelco coolants, coolants by brand or coolant by car make.
Browse the full coolant directory, or use Find my car coolant to match the spec in your owner's manual.
Next step
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Find my car coolantWhere to buy coolantHow we source this page
- Facts come from manufacturer pages, datasheets, owner's manuals and standards bodies, linked under Sources.
- We do not test products, and no brand pays to be listed or ranked. Advertising and affiliate links are labelled and never change the data.
- Anything we could not find is marked "not published" rather than guessed. Spotted an error? Tell us.