Summary
Shell Coolant Longlife Plus Concentrate coolant data, from Shell's own source. Shell Coolant Longlife Plus Concentrate is a concentrate Si-OAT coolant listed by Shell (Shell Lubricants). The manufacturer lists 8 OEM or industry spec codes, including VW TL 774-G.
Specifications
| Brand | Shell |
|---|---|
| Maker | Shell (Shell Lubricants) |
| Product | Shell Coolant Longlife Plus Concentrate |
| Part numbers (as published) | 15-601 |
| Sizes (as published) | not published |
| Chemistry | Si-OAT |
| Base glycol | not published |
| Colour | Pink |
| Premix or concentrate | Concentrate |
| OEM / industry specs listed | VW TL 774-G, MB 325.5, MB 325.6, MAN 324 Typ Si-OAT, Cummins CES 14603, BS 6580, JIS K2234, SAE J1034 |
| ASTM standards listed | ASTM D3306, ASTM D4985, ASTM D6210 |
| Service life claim | not published |
| Freeze point (as published) | -37 °C (50% in water, ASTM D1177) |
| Free-of claims | not published |
| Datasheet | datasheet |
| Source | manufacturer page |
| Last checked | 22 October 2026 |
Specs and approvals listed by the manufacturer
- Meets VW TL 774-G per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Volkswagen Group)
- Meets MB 325.5 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Mercedes-Benz)
- Meets MB 325.6 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Mercedes-Benz)
- Meets MAN 324 Typ Si-OAT per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (MAN)
- Meets Cummins CES 14603 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Cummins)
- Meets BS 6580 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (British Standard)
- Meets JIS K2234 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Japan (JIS))
- Meets SAE J1034 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (SAE)
- Meets ASTM D3306 per Shell (industry test standard)
- Meets ASTM D4985 per Shell (industry test standard)
- Meets ASTM D6210 per Shell (industry test standard)
Manufacturer wording: Shell TDS (Europe, v1.6, Aug 2023), all "(meets requirements)": ASTM D3306, D4985, D6210; BS 6580; Cummins CES 14603; MB-Approval 325.5/325.6; MAN 324 Typ Si-OAT; VW TL-774 G; AFNOR NFR 15-601; JIS K2234; NC 956-16; SAE J1034.
"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.
Compatibility notes
- If your owner's manual calls for VW TL 774-G, Shell lists that code for this product. Read the exact wording above, and confirm against your manual.
- Chemistry is listed as Si-OAT. 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 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: Shell technical data sheet (Europe) from Shell LiveDocs. Shell describes it as "Silicated Organic Additive Technology".
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: Shell product page.
Compare this coolant side by side
Open the comparison →Related products with the same listed chemistry
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- Xstream G40 Antifreeze & Coolant Ready Mixed (Comma, Premix 50/50)
- Mobil Antifreeze Ultra (Concentrate) (Mobil, Concentrate)
- PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for European Vehicles - VIOLET (PEAK, Premix 50/50)
- PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for European Vehicles - VIOLET (PEAK, Concentrate)
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Sources
- Shell product page (status on 22 Oct 2026: 200)
- Shell datasheet / spec sheet