I'm new to the MV hobby. I will be depositing money on a M923 this weekend. My main questions right now are what oils are you guys using in the engine and transmissions? I see the 10 and 30 requirements in the manual but are these just standard oils such as Valvoline 30wt? The truck I'm purchasing has the 855 NHC 250. The truck is also coming with a M105 trailer and I am watching an A2 on GL here local for the hard top and cargo cover etc. Thanks in advance for any advice.