Hey everyone i am about 1 month into my new RC hobby,I bought a redcat gen8 lovingit,Anyways i to had dry portals and diff.Well like i said im new so i had no clue when how why.Only thing i really need to know nowis.How often should you grease your portal axels?I know when in water you check or change more often,What about just standered running how often should you change or check.This is why i ask someone on youtube says he changes his grease ever 4 or 5 runs isnt that way to much?thanks for your help and so excited to be here.