Quoting John Gardner : > One more time - Leaking head gaskets should be ruled out by someone > who knows how to find them. Eyeballing the coolant reservoir is not good > enough. It's a common failure in elderly engines, & the initial symptoms > are exactly what you describe. If there is a head-gasket leak, where is the fluid going? If into the =20 cylinders, there should be whitish smoke, if into the oil, the oil =20 will be murky/milky brown, and if outside the block, it should be a =20 visible somewhere. If the fluid level is dropping at such a low rate =20 that it's not even noticeable over some days, then something else is =20 causing the overheating. Cheers, -Neil. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .