Low Friction Racing oil was created for the current clone and other OHV Box stock Classes. 

This is a world-class karting oil used in many championship-winning race engines.

Whether you run high-end karting oil, racing car oil, motorcycle oil, or that cheap store name brand oil you buy at the grocery store, regardless of what oil you run in your air-cooled industrial engine, you must replace it frequently. Our 4-cycle kart engines do not have oil filters and run twice as hot as your liquid-cooled engine in your kart hauler. This means they break down and become contaminated quickly. To ensure you are getting all the benefits of the additives in your oil to prevent wear and increase the power, we recommend changing your oil at least once every race day(more times if its in the budget) or for recreational mild builds with no more than 10 hours of run time.