Fleetguard ES Compleat OAT: specs and approvals

Updated 22 October 2026 · Independent, sourced reference

Summary

Fleetguard ES Compleat OAT coolant data, from Fleetguard's own source. Fleetguard ES Compleat OAT is a concentrate and 50/50 premix OAT coolant listed by Cummins Filtration (Fleetguard). The manufacturer's page we checked does not list OEM spec codes. Stated service life: Life-of-the-engine, 1,000,000 miles (conditions apply per data sheet).

Disclaimer: General information only, not professional advice. Always use the coolant specified in your vehicle owner's manual. Using the wrong coolant can damage an engine.
Independent and not affiliated. Coolant.com is not affiliated with, sponsored by or endorsed by any coolant or vehicle maker or retailer listed here, and we earn nothing from these links. Brand and spec names are used only to identify products. Every field comes from the manufacturer's own page or datasheet, checked 22 October 2026. "Not published" means we could not find it in that source. We record no prices.

Specifications

BrandFleetguard
MakerCummins Filtration (Fleetguard)
ProductFleetguard ES Compleat OAT
Part numbers (as published)CC36070 (bulk concentrate), CC36074 (bulk 50/50), CC2908 (bulk 60/40)
Sizes (as published)275 Gal, 1040 L, 55 Gal, 208 L, 1 Gal, 3.78 L
ChemistryOAT
Base glycolnot published
Colournot published
Premix or concentrateConcentrate and Premix 50/50
OEM / industry specs listednot published
ASTM standards listednot published
Service life claimLife-of-the-engine, 1,000,000 miles (conditions apply per data sheet)
Freeze point (as published)not published
Free-of claimsnitrite-free, silicate-free, phosphate-free, amine-free
Datasheetnot published
Sourcemanufacturer page
Last checked22 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 OAT. Mixing different chemistries can shorten coolant life. See OAT vs HOAT vs IAT and use the mixing checker before topping up.
  • Sold premixed: pour as supplied. Do not add water unless the label says to.

Note: Fleetguard data sheet hosted by a distributor. Heavy-duty diesel/gas/natural-gas engines.

Always check your owner's manual first. Use the coolant spec printed in your owner's manual or service information. A listing here is the manufacturer's own claim (meets, exceeds, approved or recommended, worded as they put it). It is not our approval and not a fitment guarantee for your vehicle. If in doubt, ask your dealer or a qualified mechanic.

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: Fleetguard product page.

Compare this coolant side by side

Open the comparison →

See all Fleetguard 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.

Sources

  1. Fleetguard product page (status on 22 Oct 2026: 200)