For the last six months or so, the temp gauge on my 3 door has been slow to rise and never got over 1/4 to 1/3 up the scale. OK, not so bad, but I like it half way and it's better for consumption. I was sure the stat was OK. Bugger the expense, buy a new one, even if I don't need it. Bought a proper Saab 89 degree one from PFS. Sun comes out, stops raining, stat changing time. What do I find? Old one is 82 deg and doesn't look like my new one, thinks Chinese, where did that come from? Five minute test drive with new stat, up to half way up on the gauge in no time. Moral, don't trust your memory, or anybody else's for that matter.