Not really sure what to do at this point. My car is overheating on the highway after 10-15 mins and I have to pull over every time to let it cool down/if I rev long enough at 3k~ while I'm bleeding my coolant the temp will also start to creep up. Heater core is hella hot when it gets going so I don't think the system is clogged. So far I've bled the system to high heaven and wasn't getting many bubbles from the heater core drain plug after a while, I've swapped the thermostat twice, the second one being a Toyota OEM one, I've changed the water pump (which was a food processor essentially when I replaced it it was so corroded, I also changed the radiator out so it can't be coolant related I'm thinking. Currently I've got a small oil leak that's dripping from the A/C compressor (not working) so my intuition says it's an oil pump failure since it takes so long to overheat and doing a leak fluid test/compression test didn't show signs of a BHG. Thoughts anyone?