A friend of mine wants to know which is better for a 2003 Honda civic. Amsoil 0w30 or the new amsoil HDD series 3000 5w30 oil? Also, how often should the oil/filter be changed for OPTIMUM engine cosideration (cleaniness and wear). He will be using the amsoil sdf 20 oil filter. Thanks. Mark.
[ March 11, 2005, 07:18 PM: Message edited by: rugerman1 ]
[ March 11, 2005, 07:18 PM: Message edited by: rugerman1 ]