was wondering if you guys can help with this...i've been having problems with coolant disappearing from the overflow tank for quite some time now and it seems to be haunting me forever. My rsx has 10k now and brought it to acura's attention 2 times already. 1st time they replaced the thermostat and said it was stuck open, 2nd time they said i had air trapped in the cooling system when they replaced the thermostat so they burped it. Problem seems to be still existing, i decided to burp it myself a week ago. Everything seemed to work fine for a while but i checked the level a week later, i lost about 1/4 inch or less of coolant again. Is this normal to lose a bit of coolant over time or am i still having air trapped in? The car was pressure tested when it was at acura & no leaks. No coolant mixed in with the oil either.