I'm looking for another camry to park until mine dies. I have 333,000 miles on mine currently. I am going to find one with low miles and good condition. No higher than 150,000
The more I hear about these oil sludge issues, the more I think that the problem is behind the steering wheel. Especially when you ask around and see how much the average person values regular, preventative maintenance.The later engine suffered from sludge issues when oil change intervals weren't followed (true for the 4 cyl. too).
One reason to do the throttle body bypass mod...V6 models will require you to remove the intake manifold to replace the rear valve cover gasket, so anything related to that bank of the engine do it while you're in there so you don't have to take everything apart again in my opinion