Alternatives to anti freeze protection

[Robbie224]

Hello. 1971 1275gt A series engine which was completely rebuilt a few years ago. It a mini which is always garaged and only used summer months ect. I want to renew coolant for my own peice of mind. As its never going to need antifreeze in coolant but does need the protection antifreeze provides engine for anti corrosion purposes inside engine and its only the water that transfers the heat out is there a alternative?
Been looking at Millers extra cool. It helps maintain coolant flow in radiator keeping engine cooler ence the name. More importantly for me though is its a concentrated corrosion inhibitor.
Is this a good idea for minis that are garaged and only brought out of spring/summer times?

[Polarsilver]

Others will respond regards the waterless coolants that are available.. however this is just a story from my past dealings with new Scania & Cummins Engines where they would or could suffer from Liner Corrosion attack if no additional anti corrosion fluid was used within the engines antifreeze.
This anti corrosion fluid is still available from Fleetguard & called DCA .. i still have the test kit somewhere to check what the levels of DCA were contained in those Diesel Engines Antifreeze so the DCA levels could be monitored and added to if needed.
My employer was throwing out a quantity of surplus Scania anti corrosion DCA that in my opinion should not be dumped .. so it became my anti corrosion solution within the Home Heating Boiler for the next 15 years & when that Boiler was replaced internal corrosion was seen as minimal so this DCA stuff does have its alternative use .. if i still had some i would have put it into my A series engines without question its good stuff that works.

[Exminiman]

Others will respond regards the waterless coolants that are available.. however this is just a story from my past dealings with new Scania & Cummins Engines where they would or could suffer from Liner Corrosion attack if no additional anti corrosion fluid was used within the engines antifreeze.
This anti corrosion fluid is still available from Fleetguard & called DCA .. i still have the test kit somewhere to check what the levels of DCA were contained in those Diesel Engines Antifreeze so the DCA levels could be monitored and added to if needed.
My employer was throwing out a quantity of surplus Scania anti corrosion DCA that in my opinion should not be dumped .. so it became my anti corrosion solution within the Home Heating Boiler for the next 15 years & when that Boiler was replaced internal corrosion was seen as minimal so this DCA stuff does have its alternative use .. if i still had some i would have put it into my A series engines without question its good stuff that works.

Interesting, nice to find a way to have less rust in the water jacket......

Was it this stuff ?
..

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[111Robin]

What's wrong with standard (blue) antifreeze?. It's an all year around antifreeze and corrosion inhibitor. Why over complicate a problem that doesn't exist ?. You are saying you don't need the antifreeze as you will only use it in the summer, so do you plan to drain the system during the winter months ?.

[1071 S]

Don’t really understand what you have against anti-freeze; as well as lowering freezing point it raises boiling point ... so works in summer as well.

However, If you insist, you could use Water Wetter by Redline. It (allegedly) reduces surface tension improving the flow of heat from the engine to the coolant...as well as having anti corrosion properties...

Cheers, Ian

[Oneball]

I don’t like water wetter. It leaves a weird gummy coating over everything, including the engine bay if the rad cap pops off. I tried it for a couple of seasons and went back to normal anti freeze.

[Polarsilver]

Fleetguard DCA4 is the current stuff available today .. The situation with those Diesel Engines was even with correct spec Antifreeze at 50% mix in use Engine Manufactures still had within warranty engine corrosion issues .. I was informed the issue was partly due to cavitation withing the engines coolant and this DCA stuff was the solution to the problem .. a story of times past on what were large capacity engines used in large Mobil Cranes.. me not sayin that such stuff as DCA need to be used in any BMC A series Engine .. just an alternative solution to engine coolant /corrosion as was asked in this Post

[surfblue63]

What's wrong with standard (blue) antifreeze?. It's an all year around antifreeze and corrosion inhibitor. Why over complicate a problem that doesn't exist ?. You are saying you don't need the antifreeze as you will only use it in the summer, so do you plan to drain the system during the winter months ?.

As per Robin, what do you plan to do in winter? Is your car stored in a heated garage? If not then you will most definitely need some kind of anti-freeze in it. Also if you car already has anti-freeze in it then you will need to make sure that the system is properly flushed out before using another type of coolant, as mixing coolants can lead to systems becoming gummed up.

[Robbie224]

Thanks to everyone with opinions. Think I'll stick to the traditional blue antifreeze for now.

[Peter Laidler]

I drained the rusty BL/Rover anti freeze from my last-of-the-line 2000 Rover Cooper sport after a couple of years, flushed it through with a preparation solution (can be re-used many times) and filled it with Evans waterless coolant. It's still as fresh, clean and green as the day I put it in. END of coolant and pressure problems.