Does the engine run during a fluid wash?

Does the engine run during a fluid wash?

• A. Yes
• B. No
• C. Only during soak
• D. Nah (besides the drying out period)

Answer: (D)

During a fluid wash you want the engine to stay stationary and not running. The cleaning fluid is circulated through dedicated wash ports to rinse internal passages, and starting the engine would create air and fuel flow that can push the fluid in the wrong paths, spread contaminants, or cause damage to seals and bearings. Keeping the engine off during the wash ensures controlled, safe distribution of the cleaner. After washing, there is a drying-out period when the engine may be run at light power to vent and evaporate remaining liquid. That’s why the correct choice is that the engine does not run during the wash, aside from the drying-out phase.

During a fluid wash you want the engine to stay stationary and not running. The cleaning fluid is circulated through dedicated wash ports to rinse internal passages, and starting the engine would create air and fuel flow that can push the fluid in the wrong paths, spread contaminants, or cause damage to seals and bearings. Keeping the engine off during the wash ensures controlled, safe distribution of the cleaner. After washing, there is a drying-out period when the engine may be run at light power to vent and evaporate remaining liquid. That’s why the correct choice is that the engine does not run during the wash, aside from the drying-out phase.