1Tom Birch, 3/071 Coolants Tom Birch Jim Halderman.
1 1 Coolants Tom Birch Jim Halderman. 2 Introductions: Tom Birch Retired instructor from Yuba College, Marysville, CA. Author of many automotive textbooks.
1 1 Coolants Tom Birch Jim Halderman. 2 Former flat-rate technician and instructor and a business owner. Author of many automotive books and lives in.
11 Coolants Jim Halderman. 2 Former flat-rate technician and instructor and a business owner. Author of many automotive books and lives in Dayton, Ohio.
11 Coolants. 22 What is Coolant? Coolant is a mixture of: 1. Water (50%) 2. Freeze depressant (Usually ethylene glycol- about 93%) 3. Corrosion inhibitors.
