My 01 RC will bw here in south korea in about 2 weeks. It has just over 8k miles. when i bought the bike i know full synthetic was put into it but not sure which brand, anyhow i have acess to Royal purple 20w50 or lucas. Both full synthetic. Any ideas as to which one or another brand i should put in over here? Also i plan on changing it about every 3k miles, good or not with that quality oil?....