The correct oil specification will have a significant effect on the performance, reliability and fuel economy of your vehicle. Oils are becoming more and more complicated and specific to particular engine types. You need to use the correct viscosity, match the industry standard and follow the manufacturer specifications. Selecting the wrong oil can cause major engine damage and reduce fuel economy, adding to running costs. Using cheap low quality oil is a false economy. Please contact CREST Engineer to get the right advice for the use of correct engine oil and gearbox oil for your vehicle.