Castrol Optigear Synthetic X 320 AD is a specially formulated package designed for use with the Optigear Synthetic X gear oil range. Optigear Synthetic X 320 AD is a concentrated form of Optigear Synthetic X 320 with carefully balanced additive levels, which allows direct addition into gearboxes already containing Optigear Synthetic X 320 oils.

Optigear Synthetic X 320 AD is designed for use with systems already running on Optigear Synthetic X 320, where there has been some additive depletion either through normal or extended running life (and the additive has worked to protect the moving parts) or where contamination may have reduced the normal additive concentration.

The level of additive level can vary so we recommend contacting Castrol for application advice.

As example and for ease of use we suggest the following: 5 gallons of Optigear Synthetic X 320 AD into an 80 gallon gear box system, 20 litres of Optigear Synthetic X 320 AD into an 300 litre gear box system.

• Can extend oil life.
• Easy addition to gear box, with minimal mixing.
• Carefully balanced additive package.

All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, or exposed to hot sun or freezing conditions.

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