Water Wetter

[Victorfr2]

Anyone with experience of Water Wetter products, a once only coolant additive for about £6 that’s supposed to reduce warm up time by 50% by reducing the surface tension as well as being a corrosion inhibitor and can be mixed with any anti-freeze. A good idea for winter running just wondered if any side effects are known.

[Bobby-H]

Anyone with experience of Water Wetter products, a once only coolant additive for about £6 that’s supposed to reduce warm up time by 50% by reducing the surface tension as well as being a corrosion inhibitor and can be mixed with any anti-freeze. A good idea for winter running just wondered if any side effects are known.

I cant see how reducing the surface tension of the coolant will reduce warmup time.

[Jesus]

I'd have thought it would have been the other way round. i.e. takes longer to warm up. The surface tension reduction serves to help heat dissipation.

Don't rely on water temperature to gauge when you can open the car up. You need to go off oil temp, which is why I fitted a oil temp gauge. Water heats up a lot quicker than the oil does.

Only use the water wetter if you're looking at keeping the engine cooler when giving the car abuse. High pressure rad cap increases the boiling point of water, so that may be worthwhile. In all honesty though, even when you're giving the car abuse, the water shouldn't get near the point you need water wetter. If you're relying on water wetter, you have other cooling issues.

The best set up you could get for your cooling is: aluminium large core rad, uprated rad fans (compatible with aluminium rad), high pressure rad cap, TRD thermostat, water wetter and oil cooler. You'd probably only need this set up though if you're a track day hero.

I'm currently using TRD high pressure rad cap (to increase boiling point), TRD sports thermostat (to start cooling water at ~72oC instead of ~82oC) and copper core rad (better heat dissipation than aluminium... but slightly heavier). I'm not yet using water wetter... but might give it a go... but in all honesty, I don't suffer at all from over-heating, so it would probably be money wasted.

Hope this makes sense and helps.