What is the best oil for a Rotax 912 ULS?
XPS Full Synthetic 5W-50 Aviation Engine Oil was designed specifically for Rotax Aircraft engines for the best performance, reliability and safety. Rotax is the brand name for a range of internal combustion engines developed and manufactured by the Austrian company BRP-Rotax GmbH & Co KG (until 2016 BRP-Powertrain GmbH & Co.