Date:         Sun, 3 Dec 2006 16:35:48 -0500
Reply-To:     Jack R <jack007@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jack R <jack007@COMCAST.NET>
Subject:      Re: Which  is the best coolant to use?  Part V???
In-Reply-To:  <005c01c71716$8514f110$755b9904@gpa207joel>
Content-Type: text/plain; charset="us-ascii"

Joel,

Thanks for your positing.

Here is what I have discovered so far today in my research, and seems to be
in line with what you posted.

So, which is the best, or will they all do the trick, since the Phosphates
and high-PH seem to be the most important factors for our motors.  Sierra is
Phosphate free but the PH is higher at 10.5-10.8, which is more acidic - So
I think I will dump the Sierra this summer.

$25/Gallon - Pentosin (PH 7.5) anti-phosphate hi-performance antifreeze
seems to do the trick, as the PH is lower than Sierra and is also Phosphate
Free.  However it is very expensive, and I think it is still a good idea to
flush and fill every so often (as it can show if you have fluid transfer, or
other problems)

$12/Gallon - PrestoneR (PH is 8.7-9.2) Extended Life 5/150
Antifreeze/Coolant is recommended and formulated for use in all GM vehicles
that require a GM DEX-COOLR approved formula coolant, as well as all other
cars and light-duty trucks with aluminum radiators. This patented formula
has a concentrated blend of premium, long-lasting inhibitors for extended
performance, protecting against temperature extremes and the ravages of rust
and corrosion for 5 years or 150,000 miles. PrestoneR Extended Life has been
proven in the laboratory to be compatible with all new extended life
formulas at concentrations typically used in all newer vehicles coming off
the production line today. These automobile manufacturers include:

Audi - General Motors - Suzuki
BMW - Honda - Toyota
Daewoo - Mercedes - Volvo
DaimlerChrysler - Mitsubishi - VW - Ford

Tip: If you decide to replace your existing antifreeze/coolant with
PrestoneR Extended Life 5/150 Antifreeze/Coolant, make sure you completely
drain and flush the cooling system first in order to gain the full benefits
of the longer-lasting formula. Also, if you are currently using Prestone
Extended Life 5/150 Antifreeze/Coolant in your car's cooling system, and you
add a conventional antifreeze/coolant, you will lose the extended
protection.

&

$11/Gallon - Valvoline [Antifreeze] Zerex GO5; Gallon (PH 7.5-8.0)
Zerex G-05 is a low-silicate, low-pH, phosphate-free, pre-charged formula
that is designed to protect automotive and diesel engines from rust and
corrosion. Zerex G05 is approved by Ford and by Daimler-Chrysler for
worldwide applications including all MTU and Mercedes engines.

Approved by Ford and DaimlerChrysler for use in automotive and diesel
engines.
Utilizes hybrid organic acid technology to minimize inhibitor depletion
Low-silicate, low-pH and phosphate-free formula
Provides protection against liner pitting and corrosion
Helps prevent rust and corrosion
Helps prevent hot weather boil-overs and cold weather freeze-ups
Protects all cooling system metals, including aluminum

Due to the differences in cooling systems, Valvoline recommends that you
refer to your vehicle owner's manual for instructions on changing your
antifreeze.