You are correct, I have recomended adding a "Coolant Recovery Bottle". I added mine by hooking a hose to the barb under the presssure cap on the header bottle and running the hose across the back of the motor. My bottle is mounted to a bolt on the left rear pontoon just ahead of the cover for the vapor canister. An overflow hose from the bottle just goes straight down. Get a bottle that holds at least 3 quarts, 4 is better. The Delorean has a large volume of coolant so it will expand and contact more than an average car. Fill it so that when cold there is just enough to cover the input fitting otherwise when the engine is hot it will overflow. Have the pressure cap tested or just replace it, if it leaks it will not draw the coolant back into the header bottle. The irony of all this is that I read where JZD got a patent on this way back when but this system was never installed on his car. I guess it must have had something to do with cost. This has become the industry standard on most new cars since around 1990. The major advantages are that it reduces the air in the system so there is less corrosion and foaming, and you can inspect the fluid level even when hot (a real plus when you put the metal header bottle on). I just went into an auto store and found one that I thought would fit. It is kind of square, I just think the plastic is too thin. An O.E.M. piece wwould be more substantial if anyone can find one that fits and looks like it belongs. David Teitelbaum vin 10757 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/