For American spec cars in the UAE, using the exact oil mandated by the U.S. manufacturer is non-negotiable for performance and warranty. This typically means a modern full synthetic with a lighter viscosity, most commonly 5W-20 or 0W-20, as specified for most Ford, Chevrolet, and Chrysler models. Crucially, the oil must carry the correct U.S. manufacturer certification, such as GM dex... https://www.rumanza.com/