Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

When replacing an oil filter, tighten it to what specification?

Tighten to the manufacturer’s specification. The oil filter’s gasket and mounting threads are sized uniquely for each engine, and the seal is designed to be achieved at a specific torque or turning method defined by the maker. Following that spec ensures the gasket is compressed enough to seal properly without being crushed or deformed, and it avoids loosening under oil pressure. If you don’t follow the spec, you risk leaks from under-tightening or damage from over-tightening, such as stripped threads or a distorted filter canister. The correct approach is to consult the service manual or the filter’s packaging and use the specified torque (or the exact number of turns after contact) with the appropriate tool.

Tighten to the manufacturer’s specification. The oil filter’s gasket and mounting threads are sized uniquely for each engine, and the seal is designed to be achieved at a specific torque or turning method defined by the maker. Following that spec ensures the gasket is compressed enough to seal properly without being crushed or deformed, and it avoids loosening under oil pressure.

If you don’t follow the spec, you risk leaks from under-tightening or damage from over-tightening, such as stripped threads or a distorted filter canister. The correct approach is to consult the service manual or the filter’s packaging and use the specified torque (or the exact number of turns after contact) with the appropriate tool.