Our premium quality automotive engine oils are formulated for optimum efficiency and are designed for use in modern, highly fuel efficient engines that are subject to increasing levels of stress such as stop-and-go city driving, frequent short trips, extreme high and low operating temperatures, extended idling and towing. Synthetic blend and full synthetic motor oils for passenger cars offer superior oxidation stability, extra protection against heavy load conditions, additional high temperature protection, and better cold weather properties than conventional motor oils. Additionally, KLONDIKE premium quality automotive engine oils are formulated under the newest technology and are certified under the latest ILSAC GF-5 and API SN specifications. This technology is also good for use in the prior ILSAC GF-4 or API SM specifications.