35 Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Introduction Periodic oil and filter changes can greatly prolong the life of an engine. Oil and filter chang- es are relatively simple, but must be done correctly. It is also vital that any oil or coolant leaks be found and promptly fixed. In Job 6, you will drain and replace the engine oil and change the oil filter. In Job 7, you will observe the engine for oil, coolant, and fuel leaks. Project 3 Jobs • Job 6—Change Oil and Filter • Job 7—Inspect an Engine for Leaks Tools and Materials The following list contains the tools and materials that may be needed to complete the jobs in this project. The items used will depend on the make and model of vehicle being serviced. Safety Notice Before performing this job, review all pertinent safety information in the text and review safety information with your instructor. Vehicle in need of service. Applicable service information. Oil filter wrench. Oil drain pan. Oil filter. Correct type and grade of oil. Leak detection equipment. Shop towels. Hand tools as needed. Safety glasses and other protective equipment as needed. Project Performing Oil Changes and Checking an Engine for Leaks 3