Coolant - Propylene Glycol Based Not Recommended

Bulletin No.: 001/94
Issued: 10/21/94
Revised:

Category
E

Applicable Model/s
All Models

Subject:
PROPYLENE GLYCOL BASED COOLANT

AFFECTED MODELS
All Mazda Vehicles

DESCRIPTION
Mazda does not recommend propylene glycol coolants. Available information indicates the following characteristics regarding propylene glycol coolants:
* Provides less heat transfer
* May not provide adequate corrosion protection (to meet Mazda specifications)
* Freezing temperature is 10 - 20% higher than ethylene glycol based coolants

Mazda recommends ethylene glycol and water mixture.