: Look for oil leaks around the block and gaskets, and signs of coolant residue.
: Ensure oil is clean and free of metal shavings. Milky residue in the oil or coolant suggests cross-contamination. 3. Structural & Mechanical Integrity what to look for when buying a used semi truck
Before touching a wrench, review the documentation. A truck's history is the best predictor of its future downtime. : Look for oil leaks around the block