(55Gal - $350.00) ISO 68 Hydraulic Fluid AW68 Ships Same-day Nationwide. Sinopec Antiwear Hydraulic Oil ISO VG 68 is a premium heavy weight hydraulic oil, ideal for industrial or equipment applications. It's a multipurpose hydraulic, suitable for most hydraulic needs. It is a rust and oxidation (R&O)-inhibited oil with the added benefit of an antiwear additive package for protection. Approved for industrial applications requiring an ISO VG 68.