Introduced by Citgo for high-performance diesel engines, Citgard 700 oil has since been expanded to two products. The original synthetic blend product, introduced as Citgard 700, is now marketed as Citgard 700 Plus. Offered in a 15W-40 viscosity grade, this oil is designed for on-road and off-road power units operating under severe conditions. Added to the line is a new Citgard 700, formulated with premium base stocks to meet the needs of most fleet owners. The Citgard 700 line meets the new API CJ-4 specifications.