Modern 4-stroke singles are notorious for overheating quickly on slow, technical trails. Over the summer, we put a little Motul MoCool additive in the radiator of our KTM 500 EXC to see if it would stop it from doing its usual boilovers. Motul claims it keeps your engine running 30°F cooler than plain old coolant. And so far, even on blistering hot days, we haven't had to pull over to let her cool off yet. Now that things have chilled out we may need to head further south to Baja to continue testing. We'll report back later, hopefully from a nice beach with Corona in hand! ➡️ http://bit.ly/mocool for more details.

















