Engine - Block Heater Precaution

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Models: All Models

Section: Engine Mechanical

Classification: EM88-004

Bulletin No.: TS88-025

Date: February 22, 1988


ENGINE BLOCK HEATER


APPLIED MODELS:
All models

SERVICE INFORMATION

Engine antifreeze in more than 50% concentration has been found to adversely affect the life and performance of the engine block heater. High phosphate content in the antifreeze forms a scale around the heating element of the block heater, causing the temperature to rise, with subsequent failure of the seals. Therefore, for best results it is recommended that you use a concentration no greater than 50% antifreeze and 50% water.