Don't listen to this advice, it is wrong. He is trying to get you to buy automatic transmission oil. There are many manual transmission oils an 75W-90 would be fine. Toyota Genuine manual transmission oil is fine, or this(which I have used and am more than happy to recommend): http://www.nulon.com.au/products/Gear_and_Differential_Oils/Full_Synthetic_75W-90_Performance_Smooth_Shift_Manual_Gearbox_and_Transaxle_Oil/#.Um9K2SHPtow There are a couple of Toyota manual gearboxes that do use ATF though.... WOT???