Zerex G40: specs and approvals

Updated 6 November 2026 · Independent, sourced reference

Summary

Zerex G40 coolant data, from Zerex's own source. Zerex G40 Antifreeze Coolant is a concentrate ethylene glycol-based coolant listed by Valvoline Global Operations. The manufacturer lists 17 OEM or industry spec codes, including VW TL 774-G.

What to buy

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Where to buy

Confirm the specification in your owner’s manual before buying. Product examples are not a fitment guarantee.

Specifications

BrandZerex
MakerValvoline Global Operations
ProductZerex G40 Antifreeze Coolant
Base glycolEthylene glycol
ColourPink
Premix or concentrateConcentrate
OEM / industry specs listedVW TL 774-G, MB 325.6, MB 325.5, MB 326.0, Cummins CES 14603, Cummins CES 14439, Deutz DQC CC-14, Deutz DQC CA-14, MTU MTL 5048, MAN 324 Typ Si-OAT, Liebherr LH-01-COL3A, VW TL 774-J, Navistar MPAPS B1 IIIA, SAE J1034, SAE J1941, SAE J814, US Fed. Spec A-A-870A
ASTM standards listedASTM D3306, ASTM D4985, ASTM D6210
Free-of claimsphosphate-free, borate-free, nitrate-free, amine-free, nitrite-free
Datasheetdatasheet
Not published by the makerPart numbers, Sizes, Chemistry, Service life claim, Freeze point. Check the product label or ask the manufacturer.
Sourcemanufacturer page
Last checked22 October 2026

Specs and approvals listed by the manufacturer

Manufacturer wording: Valvoline PI sheet: "an approved formula for the following specifications": Audi/Bentley/Bugatti/Lamborghini/Seat/Skoda/VW TL 774 G, MB Approval 325.6, Mercedes-Benz MB-Approval 325.5, MB-Approval 326.0, Cummins CES 14603 and CES 14439 Registered, DEUTZ DQC CC-14 and CA-14 Approved, MTU MTL 5048, MAN 324 Type Si-OAT, Porsche (from 2010), Liebherr LH-01-COL3A and others; "formul

"Meets X per manufacturer" is our shorthand for any of the manufacturer's own phrases: meets, meets or exceeds, approved, or recommended for applications requiring. It is the manufacturer's claim, not an approval by Coolant.com or by the vehicle maker. Codes are copied as published. Some sources list codes for compatibility rather than formal approval. The wording above shows which.

Alternatives that list the same spec

Other coolants whose makers list at least one of the same OEM codes as Zerex G40 Antifreeze Coolant. More shared codes first. Match the exact code in your manual, and do not mix chemistries when topping up.

ProductSame code(s)
Xstream G40 Antifreeze & Coolant Concentrate
Comma · Si-OAT · Concentrate		Cummins CES 14603, Deutz DQC CC-14, Liebherr LH-01-COL3A, MAN 324 Typ Si-OAT +3
Shell Coolant Longlife Plus Concentrate
Shell · Si-OAT · Concentrate		Cummins CES 14603, MAN 324 Typ Si-OAT, MB 325.5, MB 325.6 +1
Xstream G40 Antifreeze & Coolant Ready Mixed
Comma · Si-OAT · Premix 50/50		Cummins CES 14603, Deutz DQC CC-14, Liebherr LH-01-COL3A, MAN 324 Typ Si-OAT +1
Castrol Radicool Si-OAT
Castrol · Si-OAT · Concentrate		MAN 324 Typ Si-OAT, MB 325.5, VW TL 774-G
Shell Coolant Longlife Plus Ready to Use
Shell · Si-OAT · Premix (ready to use)		Cummins CES 14603, MAN 324 Typ Si-OAT, VW TL 774-G
Zerex G05 Antifreeze Coolant
Zerex · HOAT · Concentrate		Cummins CES 14603, MTU MTL 5048

Compatibility notes

  • If your owner's manual calls for VW TL 774-G, Zerex lists that code for this product. Read the exact wording above, and confirm against your manual.
  • Colour is listed as Pink. 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: Valvoline PI sheet hosted by a distributor. Valvoline calls it a "hybrid carboxylate formulation" with organic acid technology; it does not use an acronym on the sheet, so chemistry is left "not published".

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: Zerex 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.

More from Zerex

See every Zerex product we list, with the chemistries and spec codes the maker names, on the Zerex coolant brand page.

See all Zerex 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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How 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.
Sources

Sources

  1. Zerex product page (status on 22 Oct 2026: PDF read 2026-10-22)
  2. Zerex datasheet / spec sheet