What are you using now? No point us saying something and you're already using something better. Oil is very dependent on kms and how much you're currently burning (it's a 7A, so I guarantee you it'll be burning a little bit by now). I use Penrite HPR30 at the moment (20W60), if you're not burning much then a good 15W40 could be used, but if you go thin enough to notice a difference in response you'll also notice that it will just about pour out the exhaust :P Oil filter, generally most people will say that Toyota genuine part is the best, but I've had no troubles running Ryco and Purolator filters, whatever floats your boat and doesn't cost the earth, remember it's something you should be changing every 5000km (along with the oil), 10000km is too long considering the age of the car and the probable oil consumption. Coolant - Toyota Long Life Red is once again what most will recommend. Running a Nulon or equivalent premix or concentrate won't impact on the "response" of your engine one iota - if it does it's job, then it shouldn't matter which you use.