:D I recomend using NEO motor oil they have a website . I know this guy who is still running his 94 ls 400 and has over 450,000 miles on it and NEO is the only oil he has ever used including a drain and fill when he first got the car home from the dealer , yes, it was a new car , please at least use a synthetic oil. There is also a great additive called TUFOIL this is what lexus puts in there cars from the factory , but they will never admit to this . It is MY beleif that all fluids in a lexus are synthetic and i run a waterless radiator filled with EVANS WATERLESS COOLANT they also have a website .
;)