I am supposed to change the oil (Transmission) of my 2004 Cagiva Raptor 125. The recommended oil by the manufacter is Agip racing 5w40. I bought Motul Scooter Power 5w40, which is more expensive and is supposed to work for maxi scooters up to 650cc (a lot more than my bike's 125cc). Is this a bad idea? They have the same viscosity so i figure it would be ok. However, i want to hear other people's opinion.