Find the Source Before The Leak Gets Worse.
Engine oil protects moving components by reducing friction, managing heat and maintaining proper lubrication throughout the engine.
When oil begins leaking, the source is not always obvious. Oil can travel across engine surfaces, collect on shields or drip away from the component that is actually leaking.
Valve-cover gaskets, oil-pan seals, crankshaft seals, oil-filter housings and other sealing points can all develop leaks over time.
At Nutley Street Service Center, we inspect the engine and related areas to determine where the oil is coming from before recommending the repair.
Oil Loss Can Affect Engine Protection.
A small leak may begin as an inconvenience, but continued oil loss can eventually reduce the lubrication available to the engine.
Oil Level
A continuing leak can lower engine oil level between scheduled oil changes.
Engine Lubrication
Adequate oil helps protect internal components from excessive friction and wear.
Heat & Odor
Oil reaching hot engine or exhaust components can create a burning-oil smell or visible smoke.
Related Components
Leaking oil can contaminate surrounding components, belts or rubber parts depending on the location.
Signs You May Have an Engine Oil Leak
Oil leaks can appear as visible drips, declining oil level or symptoms caused by oil reaching hot engine components.
How We Diagnose Oil Leaks
The visible drip is not always directly below the source, so we inspect the engine before deciding what needs to be repaired.
Check Oil Level & Condition
We begin by checking oil level and reviewing the symptoms or oil loss you have noticed.
Inspect for the Leak Source
Engine sealing areas and nearby components are inspected for evidence of active or previous leakage.
Determine the Repair
Once the source is identified, we determine which gasket, seal, housing or related component requires attention.
Repair & Recheck
Approved repairs are completed and the affected area is checked again for proper sealing and oil level.
Leaks Can Develop at Several Engine Sealing Points.
Valve Cover Gaskets
A deteriorated valve-cover gasket can allow oil to seep or leak around the upper portion of the engine.
Common upper-engine leakOil Pan & Engine Seals
Oil-pan sealing surfaces and crankshaft or related seals can develop leaks that appear beneath the engine.
Location-specific repairFilter Housings & Other Seals
Oil-filter housings, coolers, sensors and other engine sealing points can also become sources of oil loss.
Vehicle-specific componentsNot Every Fluid Leak Is Engine Oil.
Engine Oil
Engine oil commonly ranges from amber to dark brown or black depending on age and service history.
Transmission Fluid
Transmission-fluid leaks can originate from a different system and require separate diagnosis.
Coolant
Coolant leaks can appear under the engine compartment but often have a different color, texture and odor.
Water From A/C
Clear water beneath the vehicle after air-conditioning use is often normal condensation rather than a fluid leak.
Repair the Leak at Its Actual Source.
Oil can travel across engine surfaces before reaching the ground, which means the wettest or lowest point is not always the component causing the leak.
Our technicians focus on identifying the source, evaluating the severity and explaining the repair before work begins.
Common Oil Leak Questions
It depends on the severity of the leak and the engine's oil level. A significant leak or low oil level can put the engine at risk. If the oil warning light is illuminated, the vehicle should be evaluated promptly.
Oil residue from service may occasionally remain temporarily, but an active leak can also come from the drain plug, oil filter area or an unrelated gasket or seal. Inspection is needed to identify the source.
A burning-oil smell can occur when leaking oil reaches a hot engine or exhaust surface. The source should be inspected, especially if smoke is also visible.
No. Repair complexity varies considerably depending on the source and how much disassembly is required. The first step is determining exactly where the oil is leaking from.
Protect Your Engine With Related Maintenance & Diagnosis.
Find the Leak Before It Becomes a Bigger Problem.
Schedule oil-leak diagnosis or repair with Nutley Street Service Center in Fairfax.
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