recommended antifreeze?

Is it alright to use the orange stuff even if you have the old green stuff
in there a bit? Are the both compatiable?

 

i wouldnt risk it.

id drain it all, fill with tap water, run for a few minutes until its up
to temperature, (heater on), drain it out. if its not clear enough,
refill with tap and do it again.

now, if ya REALLY wanna be anal, use distilled for the whole process,
but i dont think 5 mins of tap water going through is going to do any harm.

once its all coming out hot and clear, refill w/orange and distilled
water, 50/50 mix.

 

JM wrote:

This is true and even here in Austin, the enviro capital of the world,
that is the policy for individual vehicle owners and small shops.

Letting it run on the ground is a BIG no no though...

 

The big no-no is to allow antifreeze to go into storm sewers (which for
the most part are separate from sanitary sewers) by being drained on the
ground which in turn can affect streams and lakes.

However, treating relatively small amounts of antifreeze is routine for
most modern waste water treatment facilities...

 

According to Prestone their new long life coolant can be used in Hondas.

 

If you have a septic system, don't do this.

 

According to Prestone, the old stuff was OK too.

 

The new stuff is borate and silicate free. So I would tend to belive them.