I'm due for a transmission flush. The last time we got it checked, it was back in March and the fluid was light brown. It's now August and it's pretty much due for a flush. I won't be doing it myself but I will purchase the fluid. What fluid do I purchase and how much do I need? I've read that the Toyota T1V transmission fluid will do?<p>How much air should I have in my S70? The tires were filled with nitrogen at 32PSI/29PSI front/rear a few months ago. The manual states like 32PSI/29PSI I believe, but I've heard that you should just keep it at 33PSI front and rear now. Is this correct?<p>Also the brakes seem to be squealing a bit under braking. I think it's the brakes because before, there seems to be light squealing every once in a while under light braking. However, I also seem to be experiencing a random high pitch sound when driving normally. Sorry if I'm being confusing on this.<p>Finally, what tires are we supposed to use? The sticky <A HREF="http://forums.swedespeed.com/zerothread?id=6843" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=6843</A> says that the correct tire sizes are 195/65/15, however we have Michelin Harmony 195/60/15 on the car.