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Starbrite Engine Descaling Motor Flush - 3.78 Litre

Starbrite Engine Descaling Motor Flush - 3.78 Litre


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Regular price £84.99
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Starbrite Engine Descaling Motor Flush - 3.8Ltr                             Ref: MA-092600EUR

Star brite® Descaling Engine Flush is designed to safely and quickly remove scale, calcium deposits, corrosion, salt and carbon buildup in your engine’s cooling and wet exhaust systems. These deposits can make your engine run hot by restricting water flow through the cooling jackets. Calcium buildup also may damage your engine’s water pump. Descaling Engine Flush WILL NOT damage seals, gaskets or rubber impellers.


  • Removes scale and deposits from all marine engines
  • Will not damage engine seals, gaskets or rubber impellers.
  • Winterise your boat right on the trailer.
  • Quickly and easily adds winterising anti-freeze to inboard and outboard engines.
  • All you need is a garden hose, ear muffs or flusher attachment and Starbrite Anti Freeze.
  • Also descales marine engine cooling systems and removes zebra mussels.


  1. Remove the boat from the water. Place the motor in an appropriate container so that the engine intake is well below the lip of the container. Mix one part of concentrated Star brite® Descaling Engine Flush with one part freshwater. Fill container until engine intake is completely submerged in the Descaling Engine Flush mixture.
  2. With the engine intakes completely submerged, run the engine until the green mixture comes out of the exhaust/water outlet of your engine. Immediately shut off the engine and let the engine sit for 5-10 minutes. Turn the engine on to allow the fresh mixture to flow through the system, then shut off the engine again. Drain the entire system.
  3. Dispose of the flush mixture in compliance with local, state and federal laws. Fill the container with fresh water and completely submerge engine intakes in water. Start engine once more and run for 5 minutes while freshwater runs throughout the engine system.

CAUTION: Wear goggles, respirator mask and gloves when handling this acid-based product. Avoid breathing fumes when mixing water and engine flush. It is normal for this product to slightly smoke when initially mixed with water. Take precautions against spills near any grass and plants. KEEP AWAY FROM PETS AND CHILDREN. DO NOT MIX WITH OTHER CHEMICALS. THIS PRODUCT IS BIODEGRADABLE.

WARNING: Contains inhibited and enhanced Hydrochloric Acid. Use in a well-ventilated area. Harmful if swallowed. If swallowed, drink 3-4 glasses of milk, milk-of-magnesia or water. DO NOT induce vomiting. Call a physician immediately. If contact with eyes occurs, flush eyes continuously with fresh water for 15 minutes. Get medical attention if irritation continues. 

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