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Warranty - Engine Coolant Substitute Caution|Page 753 > < Warranty - Engine Coolant Substitute Caution
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Coolant: Technical Service Bulletins
Warranty - Engine Coolant Substitute Caution

Bulletin Number:

89-SM-3

Reference Number:

880201

Publish Date:

12/88

Subject:

ENGINE COOLANT SUBSTITUTES - ALL VEHICLES

With the continuing shortage and increasing prices of ethylene glycol, several substitutes have appeared on the market.

These substitutes appear with many names and a variety of prices. Recognizing that price is a major consideration when purchasing required materials,
we caution dealers to assure that a bargain is indeed a bargain.

Many substitutes will require increased concentrations for freeze protection and may inhibit cooling capability.

Only ethylene glycol based coolants meeting the GM 1825M Specification are approved for use in Pontiac Vehicles. Coolants which use substitutes for
ethylene glycol do not meet warranty requirements.

Warranty - Engine Coolant Substitute Caution|Page 753 > < Warranty - Engine Coolant Substitute Caution