Lucas Oil 10640 Super Coolant-473ml

I have a large lawnmower that was always running hot. So much so that the temp gauge was permanently in the red and the engine would frequently cut out (hot running safety cut off). Now it rarely goes above the halfway mark on the gauge. Simply incredible.

I bought this with the intension to sort out my coolant bubbling when I turn my car off after it has been driven for a while. I didn't expect any magical fluid to sort out my bubbling issue and I am not surprised... There was no improvement what so ever.Test Car:Nissan Skyline R33 GT-R.Coolant used:Comma Xstream G30 + Deionised Water 50/50 Ratio and Lucas Super Coolant.After changing the fluids, bleeding it correctly and everything... my issue did not go away. The hot spots when switching off the engine still cause the water temp to exceed 100C and start bubbling inside my coolant system. Whilst driving, I monitored on a laptop to find there was also no change in the driving temperature. Maintained 82-90c water temperature at all times dependant on engine load. The exact same temperatures as prior to adding the Lucas Super Coolant in.Not even half their 6c (20f) reduction claim.I decided not to give this item a one start purely because of the fact it has some proven engine ingredients inside.According to the Data Safety sheet, It contains the following:Sodium benzothiazol-2-yl sulphide (Seal Rejuvenator)Disodium tetraborate, anhydrous (Water Lubricant - good for water pumps)Sodium nitrite (Preservative for longer life)Sodium hydroxide (Cleaner)I would recommend avoiding this product to save your money unless you plan to use two bottles for a stronger concentration for the coolant additives.

Hopeless...made bobdifference whatsoever...