I've recently been losing coolant and can't seem to find a leak anywhere, so naturally I'm in a panic that my HG is blown. I don't have any white smoke nor does it have the dreaded "sweet" smell, the runner isn't overheating, and I see no bubbles in the radiator. But...I am paranoid and came across this product while looking for a cost effective way to calm my nerves.

http://www.amazon.com/Lisle-Combusti...=pd_sbs_auto_4

I got it for less than $30 shipped, thought it would be worth posting since I know we are all paranoid about this. I'll post more when I get it in and perform the test, but for now I thought I'd let ya'll know since the same product at NAPA is $50! I'm still gonna try and track the leak in the mean time but look forward to some peace of mind that its (hopefully) not my HG.

 

I'm in the same boat, losing coolant and have no idea why. I filled it 6 days ago and now its empty again, but I haven't noticed any leaking. Hopefully it's not the HG!!!