Answer
Undiluted or 1:1 for heavy contamination; 1:5 to 1:20 with water (or gas-oil for oily surfaces) for general cleaning. Spray, brush, mop, foam gun or pressure washer; dwell 5–15 minutes without letting it dry; agitate stubborn areas; rinse.
Detailed question
How is Degreaser Heavy Duty diluted?
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