You can use Royal Purple motor oil in the same manner as you use conventional motor oil. While it is compatible with other natural or synthetic oils, Royal Purple recommends a full oil change, including a high-quality filter, the first time the product is used.
The main difference between Royal Purple and other synthetic oils is the addition of Synerlec. This proprietary additive creates a greater film strength, which provides the engine components with better protection against metal-to-metal contact. Since Royal Purple already contains certain proprietary additives to enhance engine performance, the use of other oil additives is not recommended.