Opie Oils range of Fiat specification oils for your vehicles engine and gearbox, ensuring you select the correct spec oil is vital in order to keep warranty valid and ensuring that the fluids are suitable for application. Oils within this section have been specifically laboratory tested by Fiat and have been tested evaluating the viscosity, cold start protection, foaming amount, corrosion on copper internal components, reactions to rubber and oxidisation stability to ensure they are compatible and offer the correct protection during operation.