Q: Can I mix synthetic with a conventional mineral oil?
A: Oils which are made for the same purpose of use and meeting the same quality classifications can usually be blended, regardless of whether they are single- or multi-grade oils. However, blending of oils meant for different purposes of use – e.g., those for diesel and gasoline engines – is not recommended. Nonetheless, the best way to guarantee uniform quality is to use the same oil between oil changes.
Q: What does synthetic oil mean?
A: Synthetic motor oils are normally based on synthetic hydrocarbon, manufactured either from ethane gas through polymerization or a multi-phase refining and conversion process. As they are chemically hydrocarbon compounds, the same as mineral oils, they can always be used in place of mineral oils when the most high-class product is desired.
Q: What is a detergent or non-detergent oil?
A: Detergent oils are designed to meet the highest standards of engine cleanliness and deposit control.