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It was recommended by a mate who’s a chemist and may even be a member here (with the ex-Victor Chang 6.9). He said it’s likely better than using citric acid. Liquid Intelligence was first mention here a few years ago but no-one reported back with any results.

Thanks Patrick! Below is the pump after reco & finished in just 2 days!! They even supplied a free gasket which it seems they made in house… I’m getting the impression they can fix anything cooling system related & probably many other things too! I am concerned about the level of corrosion in...

Some progress pix during the move. I can’t believe I did all that!

Valvoline has discontinued Zerex & replaced it with the following product:

I believe Valvoline is far cheaper than OEM, but I’m liking the blue colour of OEM!

Some examples of what coolant shouldn’t look like (black with oily film) and what your manifold neck shouldn’t look like (broken 6.9- not mine)! I had some Zerex stored for a long time & the NOS coolant in one of the containers turned out to be off-colour (yellow-ish), so I decided not to use...

So here's a process I've developed to change your coolant, which can be adapted to almost any vehicle. Follow this procedure on a COLD engine: Place the vehicle on jack stands so it’s relatively level, Remove the radiator cap, Place a 15-20L container under the bottom radiator hose, Loosen the...

I begin with a question; what is the THE MOST IMPORTANT FLUID that is critical to ensure the long life of our precious vehicles?? Brake fluid? No – this ensures we are safe and even if it deteriorates these smaller parts can easily be repaired / replaced. Engine oil? No – in a vehicle not driven...

Removing Scale Deposits Step 1 must be completed even if you think your system is free of oil etc Completely drain the cooling system Mix 1.5kg Citric Acid (10% or 100g/L) to 15L water in the empty 20L container used for the Cooling System Cleaner. I would suggest disposal of the container...

This is an article for ATB Magazine by MBCV which will be published in March 2024. For completeness, I'll add the coolant article after this one which is about cleaning: Continuing on from my last very long article about coolant…. Coolant is so important because it acts as an anti-freeze and...

So here's a process I've developed to change your coolant, which can be adapted to almost any vehicle. Follow this procedure on a COLD engine: Place the vehicle on jack stands so it’s relatively level, Remove the radiator cap, Place a 15-20L container under the bottom radiator hose, Loosen...