was reading in the owners manual that 10W30, 10W40, 5W30, and 0W30 can be used. non energy conserving oil, 2.9 quarts. which would be the best viscosity to run? would it be best to run the honda oil? was thinking of going with 10W40 Amsoil, but can i use the regular amsoil or should i get the 10W40 motorcycle oil? 4 wheeler is used mostly in hot weather and mild mississippi winters.