Seeing as all the cool kids are off having fun. I’ve agreed to cover this shift on here for any mech tech questions. Please bare in mind there’s a small possibility that I might just make stuff up. Don’t be shy. I’m here to help. Think of me like your banks Indian call centre, only with slightly poorer English skills. To answer your question mr Courtney of grinstead, the best oil for a bus is a mix of olive oil with a splash of chilli oil. Easy this. Don’t know what all the fuss is about.