GRO Gearbox Racing Oil is a premium, largely synthetic lubricantdesigned for all racing and high performance automotive, motorcycleand marine transmission systems. The thermally sensitive constructionof Gro ensures optimum performance in all conditions and has extremelylow drag characteristics, whilst retaining outstanding resistance tosevere shock loadings that occur under racing conditions.Gro is suitable for all high performance transmission systems where anSAE 10W40, 20W50 or SAE 30 lubricant is recommended.
SAE EP 75W-90 API-GL4