In a message dated 7/17/02 5:52:26 PM Central Daylight Time, dmcman73@xxxx writes: > There are a few types such as one squeeze a rubber bulb to suck some > antifreeze into a chamber that has a meter on it (nothing fancy, no > electronics just all plastic pieces) and the other are test strips > that you dip into the antifreeze and they change color to determine > the strength. > > Steve At my work, we have a spectrograph which can give you the antifreeze protection level to the nearest degree. you take one drop from the radiator and put it on a glass screen, the hold the device up to the light, and a shadow will appear on a scale of temperatures on the viewfinder, giving you the info you need. also remember to always test the antifreeze from the radiator and NOT from the radiator reservior/expansion tank ( the antifreeze in there usually festers and doesn't get circulated and will give you an inaccurate reading). unfortunately the DeLorean doesn't have a removable radiator cap and we have no choice, however i believe the antifreeze in the header bottle is ok because of the circulation design. Andy Soma576@xxxx 1982 DeLorean DMC-12 VIN#11596 Fargo, ND 58102 [Non-text portions of this message have been removed]