Coolant fluid

["Sacha Prins" <sprins@xxxx>]

Hi,

The other day I noticed that the cooling reservoir of my DeLorean was
empty, since I was a long way from home I added 2 liters (0.5 gallons?)
of water which filled the coolant reservoir to the required level.

Today I was driving in a traffic jam and suddenly the temp meter went
to 104C (which is the last white line on the scale) and that scared me
a bit. When I caught speed again the temp meter dropped to a more
regular level. On the way back there was no traffic jam so I could
drive home without any temp problems.

I now wonder if the balance coolant/water might be off in such a way
that it doesn't optimally cool the engine anymore. 
My 2 questions in this light are: Is it normal for the engine to heat
up this much in warm weather (88F) when driving slowly for aprox. 30
minutes due to e.g. a trafic jam? Is it advisable to drain the entire 3
gallons of coolant fluid and replace it with fresh fluid, and if so how
do I go about draining it?

If this (second question) is described in the tech. manuals then just
tell me, I'll be getting all my manuals next week and I can look it up
myself. I'm just a bit impatient.

Thanks,

Sacha
#17115

P.S. AFAIK there is no Fanzilla or other similar system installed in my
DeLorean