I just figured since the manual recomends every 7k on normal service the filter should be fine, I sure it would. But it is cheap insurance. But changing oil would take like 5min without a filter change. 1 bolt. Filer up. With the filter you gotta take out 6bolts. two plastic fasteners. Pull it out. For me, take out filter housing with band clamp as to not destroy the stock plastic. Change filter. Putting the filter housing is is sometimes a pain cause the oil seal will want to squirm out or tear if you dont get it perfect. Then put everything back. Its kinda a PITA by yourseft cause the plastic sheild is fairly big and has to lined up just right. I am sure it get easier with practice but the procedure is the same on the mz3 and I have done it about 4 times. Takes me 20-30more easily. I'm so lazy. :dance2: :madthrow:Those Toyota's don't have turbo charged direct injection engines. I'm sure you can make it 5k with our cars, but it should be a full synthetic oil. I wouldn't want to attempt 7k though. From previous experience with 6 turbo cars, I will be changing mine every 3k with synthetic. The direct injection will contibute to polluting the oil faster also. If you go 5k, let me suggest keeping an eye on the oil condition. I would also recommend changing the filter every oil change, it's just cheap insurance. I dread the thought of changing that damn filter more than the $6 cost.