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ISO VG 680 grade oils
Viscosity is the first thing to settle when choosing an oil: load-carrying capacity, film thickness and cold-start behaviour all follow from it. This page covers the equipment that typically calls for ISO VG 680 and lists the catalogue products in that grade.
Where this grade is used
- Gear & Bearing Oils
ISO VG 680 products in the catalogue
- Shell Omala S2 G 680 — Industrial gear oil
- Shell Omala S2 GX 680 — Industrial gear oil
- Shell Omala S4 Gxv 680 — Synthetic gear oil
Before changing grade
- Moving one grade up increases film thickness but makes cold pumpability harder.
- Moving one grade down reduces churning losses yet raises the risk of film breakdown under high load.
- The equipment builder's viscosity window should be the reference for any change.
- If the system is not fully drained, the resulting mixed viscosity has to be accounted for.
Price and availability
Contact us for current pricing, stock availability and delivery times for this product group.
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