156 Section 1 Introduction to Automotive Technology Copyright Goodheart-Willcox Co., Inc. 5. Engine coolant consists of: (A) water and antifreeze. (B) oil and antifreeze. (C) water and stop leak. (D) water only. 6. A vehicle with an automatic transaxle enters the shop with 150,000 miles on its odometer. Techni- cian A tells the customer that she should change the transmission fluid. Technician B says this could be a big mistake because the loss of fric- tion material in the old fluid could make the worn bands and clutches slip, stopping the car “dead in its tracks.” Who is correct? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B.