RE: AeroKroil
aerokroil is what i've got too. Got it randomly at work. Does well though i don't have good comparitive experience. I wear gloves and safety glasses when spraying. I got it on my skin... not good. I used it to loosen rusted up exhaust bolts.
Tri-flow, just to give a fun fact about it for those who use it... doesn't provide any long term lubrication, just short term or for cleaning. For example, it's often used to install bicycle grips because you spray it inside the grips, they slide on easily, and after it dries, it's gone, and they don't move at all.