Can CITGO heavy duty diesel oil be used in motorcycles?
Yes, CITGARD 600 15W-40, CITGARD 700 15W40, CITGARD 700 Plus 15W40 or SynDurance 5W-40 Full Synthetic perform very well in the crankcase of most motorcycles. The robust additive package and high amount of anti-wear additive makes these heavy duty oils well suited for this service. Care must be taken that the proper viscosity as recommended by the manufacturer be used.