thnx for all the info. i alrdy changed the oil checked all the fluids, air fliter, and oil filter. gonna put ngks on aswell and was going to change the tranny fluid why should i use toyota t4 sunthetic what does it do how much? i got a set of 18" wheels on there now off a newer infinity im going to put 2 new tires on the back this weekend. also hoping to get it tinted dark this weekend.