2026-10-08 · 5 min read
Mitsubishi ASX Oil Leak Diagnosis Malaysia
Oil leaks on the Mitsubishi ASX most commonly originate from the valve cover gasket (rocker cover gasket), crankshaft rear oil seal, or oil pan gasket. A distinctive burning smell or oil spots on the ground after parking are common symptoms. The 4B10 engine is generally reliable, but rocker cover gasket deterioration is reported on higher-mileage vehicles. Ignoring oil leaks leads to contamination of other components, potential belt or hose damage, and eventually low oil level causing engine wear.

ASX Oil Leak Inspection
- Common leak points: valve cover gasket, oil pan gasket, cam seals — inspect at each service
- Small oil spots under the car after parking indicate a leak — find the source before it worsens
- Oil level check monthly — a gradual drop without visible leak may indicate valve stem seal wear
