Ok My 2003 PT has 70K miles.It developed a very slight leak( I used a half of tube of BARS Leak and now 1k miles later -ok) anyway manual says anti-freeze is good for 100K miles) someone now just told me that alluminum radiators seem to get leaks because antifreeze breaks down & eats it?? & another leak will eventually develop?) so do i leave well enough alone---or change it & add more Bars Leak? ?? ) thanks MJB
