Once a vehicle has been affected by flood waters many people believe they have no other options than to write the vehicle off and start again. However, if your vehicle was parked and not running when it was submerged the damage may not be as bad and the vehicle could well be recovered.

How can additives help a water flooded vehicle?

Firstly, you will need to thoroughly inspect all areas for water—oils, diesel, air and fuel filters.
Once all the fluids have been removed and inspected for water, new fluids can then be replaced and the process of restarting can begin.

How do additives help with water in diesel?

Diesel contaminated with water.
If water has severely contaminated the diesel you will need to drain the fuel tanks:

• Clean the fuel system and drain tanks (remember you can’t make water magically disappear from diesel)
• Should the fuel tanks only have minor water then add CRD Fuel Enhancer to the tank.

Water contamination in engine, differential or transmission oil…

The sooner you remove the water affected fluids the better.  Get the oil out of the components and replace with new oil and a strong concentrated additive like AW10 Antiwear.

If diffs, transmissions and engines have been submerged, the longer the water contaminated oil remains in the vehicle, the more damage will occur. After the fluids have been flushed or changed, inspect how much water is in the oil. Aw10 can be added to the diffs, transmissions and engine oil. This will reduce engine wear and improve your oil quality, and more importantly prevent any internal corrosion from forming.
NB. If the components have had a lot of water, the engine will benefit from being properly flushed out to remove any oil and water sludge.