Summer coolant option

[souzape]

Have been looking for suitable summer coolant for some time and found this last month. Currently running a 10% solution and can see a noticeable improvement over diluted glycol antifreeze mixture. Be aware, this stuff has no cold weather protection but it sure seems to work in the heat. Purchased thru NAPA.

Phil Souza


This information only applies to products manufactured in the following location(s): USA
Effective Date: Expiration Date: Replaces: Author's Initials: Code
07-12-2002 07-12-2005 New DET
Valvoline’s Zerex Racing Super Coolant is a NASCAR
proven cooling system corrosion inhibitor concentrate. It is
added to water at 10% by volume to cool and protect racing
internal combustion engines requiring no freeze protection.
Zerex Racing Super Coolant provides a 25% improvement in
heat transfer over conventional glycol based engine coolants.
It maintains the cleanliness of heat exchange surfaces by
preventing rust and corrosion product buildup, unlike plain
water
Zerex Racing Super Coolant gives excellent protection against
cavitation and corrosion to all metals commonly used in
automotive cooling systems. Aluminum, ferrous metals, and
yellow metals are well protected. Zerex Racing Super Coolant
prolongs the working life of water pumps and heat exchangers.
Zerex Racing Super Coolant should be diluted with tap,
demineralized or deionized water. The dilution water should be
a clear and free of suspended matter or solids.
Zerex Racing Super Coolant can also be used in collector
cars, classics, hot rods and other specialty vehicles, for
applications where overheating is a concern.
Valvoline recommends that spent coolant never be disposed of by
dumping into a septic system, storm sewer or onto the ground.
Instead, contact your state or local municipality for instructions on
where to and how to properly dispose of this coolant and protect our
environment.
If any coolant is spilled onto the ground, contain the spill and call the
state authorities and ask for proper instruction on how to clean up
the spill.
Racing Super Coolant
Zerex Racing Super Coolant
Water Quality Table
Water Hardness
Chloride Content
Sulfate Content
0-25° Clark (0-3.6 mmol/l)
<100 ppm
<100 ppm
Typical Physical Properties
Appearance
Density, 20°C
Boiling Point
Flash Point
Reserve Alkalinity (5g of product)
Water content
pH
Refractive index, 20°C
Water miscibility
Freezing point – concentrate
Freezing point – 10 wt %
purple liquid
1.096
226.4°F
>248°F
12.5 ml
48.2 wt %
9.5
1.4010
complete
-34°F
32°F
Technical Data
Foaming, 10%, ASTM D1881
Volume, ml max 70
Break Time, sec max 5
Rubber swelling 0-3% SBR/EPDM
equivalent to water
Corrosion Tests – 10% v/v
ASTM D1384 – all alloys < 0.2 mg/cm2 loss
ASTM D4340 – aluminum alloy < 1 mg/cm2/wk
Shelf life 3 years, unopened
Technical Bulletin

[Slither]

Valvoline recommends that spent coolant never be disposed of by dumping into a septic system, storm sewer or onto the ground. Instead, contact your state or local municipality for instructions on where to and how to properly dispose of this coolant and protect our
environment.

If any coolant is spilled onto the ground, contain the spill and call the
state authorities and ask for proper instruction on how to clean up
the spill.

Is this boilerplate, or is this stuff toxic?

[souzape]

The same warnings are on antifreeze. It's all toxic to some extent. I doubt that this is any worse than normal coolant products. Phil S.

[bstandley1]

Phil,

Have you seen a reduction in coolant temperature using this product and if so, how much?

Bob

[souzape]

Bob- my problem in the summer has always been driving in stop and go traffic. Since putting the Zerex stuff in I'b been able to hold the temp below 190 with ambient temps running about 100. It would boil with the 50/50 DexCool mix. The Zerex looks like a "water-wetter" compound with anti-rust and lubricant included in the package..... a single additive to run with water instead of having to mix several things yourself. Sells by the quart for about $10.00. So far looks pretty good to me. Hell, I can't really drive the car anynway when it gets much above 100 F. Just because it's a dry heat is meaningless. Sucks the moisture right off your eyeballs.

Phil Souza

[bstandley1]

Thanks for the information, Phil. 190 in traffic sounds pretty good to me....

Bob