Goodyear Supreme 10W-40 is an advanced technology engine oil blended in high-performance fully synthetic base stocks fortified with precisely balanced additive system, to help deliver high level of performance and outstanding protection during long service intervals. It provides maximum protection in the latest engine designs operating under severe conditions and protects against the potential for pre-ignition (LSPI) in these engines, including high-performance turbo-charged gasoline direct injection TGDI) and non TGDI designs, supercharged gasoline and certain diesel multi-valve fuel injected systems.