Hello everyone! I have a 2014 prius 160k miles. I have been watching lots of YouTube videos and have a large supply of tools at my house and am reasonably comfortable working on vehicles (especially prii!) My goal is to take apart my intake manifold to clean and soak over night to make ot squeaky clean. I plan on cleaning out the throttle body, egr pipe and cooler. I am ordering new manifold gasket new PCV valve and will also be replacing the engine coolant (might as well get as much done as possible) I think I'm going to skip the oil collection can for now as I am a bit confused on it and can't figure out if it is $160 $60 or $35 for one that will work for 3rd gen. I have a few questions, the first is since I will start by draining radiator and reservoir and eventually disconnecting much of the coolant lines when I finnaly have everything back together I can just add coolant until it settle, put prius in maintenence mode until everything kicks on, turn heat on full blast and this will guarantee all air is purged and the entire system is optimal level? I'm also open to any suggestions on what else I should do since I will have everything open up anyways. Last, I am doing this because of obvious oil consumption clogged system don't want a blown head gasket problems I've also read about some BG brand products that can help restore the entire system to pre oil consumption level but the link I found is obsolete so I don't know if this product is real of all 3 bottles (different labels on each) are needed if it still is a viable option. Any and all help would be much appreciated as I will have all my supplies by Monday and will have the prius down for a couple of days. I'll add that I have taken apart my old 2010 prius before in several occasion so I have some comfort with this but I also am very limited on mechanical knowledge (very good at youtube and repair manual work though) I also have a brother in law I live with who is addicted to buying tools so my house has everything except an engine hoist at this time. I just really would like to hear any tips or feed back as I am doing this by rote learning rather than any actual complete understanding of engines and systems.