I installed the DMCJoe overheat protector in my Delorean... works great! I have a small drip in the front of the car... not bad, but it's there, and the car doesn't overheat.. doesn't come close... Here is my question - antifreeze says 70/30 mix maximum...I don't trust anyone around here to work on my car, so I do not mind putting in antifreeze now and then... but what is a pain is mixing it... I keep a bottle in the trunk... in 5 months I havent even used a half bottle, that will tell you how small the leak is.. and it's not a pressure leak, its a drip... Can I put straight antifreeze in the car? I figured the mixture was just something to make the jug go farther.... but I am not sure... there are no cautions to NOT use straight antifreeze, but I do not know if the water does something critical like activate the coolant or something... bototm line - will it hurt to run straight prestone antifreeze in the car without mixing??? Also, I wanted to say a very big thank you to DMCJoe, once again for being the great guy that he is... as I've decided to no longer try and keep my car under 4000 miles anymore (meaning I drive it for fun now! woohoo!), I've discovered I have the hot-start problem... I was at lunch, and it wouldn't start after getting done eating... I called DMCJoe on the phone, and as usual he was very cheerful, and he told me how to disconnect the blue cold valve circuit or whatever it is, and the car now runs trouble free... thanks DMCJoe! Mike __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/