Oil Leak or Oil Consumption? How to Tell the Difference
Oil level can fall without a puddle. Compare external evidence, exhaust behavior, operating conditions, and measured usage before choosing a repair.
Category Engine & Cooling
Cooling System Pressure Test: A Safe Diagnostic Overview
Pressure testing can expose a slow coolant leak without running the engine, but only when the system is cool and the correct adapter and limit are used.
Reading Spark Plugs: What Deposits Can—and Cannot—Tell You
Spark-plug appearance can support a diagnosis, but only when plug location, mileage, operating conditions, and scan data are considered together.