Oil-stain removal: realistic expectations
Oil treatment is a process of improvement, and honest expectations matter as much as the equipment.
Why oil penetrates
Concrete is porous. Oil can move below the visible surface, especially when a stain is old, repeatedly exposed, or previously covered with absorbent products. Heat and treatment can release a significant amount, but a remaining shadow may still be visible.
How professional treatment works
The cleaner identifies the likely contaminant, protects adjacent materials, applies compatible treatment, allows proper dwell time, agitates when appropriate, and rinses with controlled hot water. Some conditions justify a second treatment.
What to tell your cleaner
Share the stain age, likely fluid, previous products, surface type, and any coating or sealer. These details improve the plan and reduce the risk of an unrealistic promise.