![GM dexos R Raises the Motor-Oil Bar for High-Performance Engines GM dexos R Raises the Motor-Oil Bar for High-Performance Engines](https://syntheticwarehouse.com/wp-content/uploads/2023/05/beautiful-blue-corvette-306x205.jpg)
GM dexos R Raises the Motor-Oil Bar for High-Performance Engines AMSOIL Signature Series already outperforms the new motor oil specification. _by Brad Nelson|January 30, 2023 GM recently launched a new motor oil performance standard with its proprietary dexos R motor oil…