Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
"Safe" Coolant? No Such Thing (ASN 0394-03)
Reference number: ASN 0394-03
"SAFE" COOLANT? NO SUCH THING
TECHNICAL SERVICE BULLETIN
"SAFE" COOLANT? NO SUCH THING
Model(s): 1986-94 Acura Vehicles
Group: Cooling
Bulletin No.: ASN 0394-03
Date: March, 1994
SERVICE INFORMATION
You may have heard of a propylene-glycolbased coolant that's advertised as being "essentially non-toxic" and "safer for people and pets." Another leading coolant manufacturer claims this advertisement is very misleading and irresponsible.
In any event, treat this product the same as any other coolants when it comes to potential hazards and disposal. Ingestion of this coolant, even a small amount, can be lethal. And you must still dispose of it in accordance with local ordinances, particularly if it's used. Used coolant is almost always contaminated with heavy metal deposits from the cooling system.
Remember, Genuine Honda Coolant is the only coolant recommended for use in Acura automobiles. Other coolants don't contain the combination of additives that we require for extended engine life and water pump seal lubrication.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.