Anti Freeze and Perkins 4236 Engine Installed 1974

[Deleted member 36384]

My boat came with a large drum of antifreeze which I have been using over the years to dilute into the coolant water. It is now all used up and I dont have the drum details. It appears that the type of antifreeze I buy may matter.

https://www.mg-cars.org.uk/imgytr/hints&tips/antifreeze.pdf

... Traditional blue ethylene glycol is a toxic but highly effective antifreeze; it contains silicates as an inhibitor to help prevent corrosion in engines with mixed metals in their make-up. ...

Choosing the Right Coolant for Your Car

... There are three main types of coolant that car companies use: Inorganic Additive Technology (IAT), Organic Acid Technology (OAT), and Hybrid Organic Acid Technology (HOAT). Typically, older cars use IAT. ...

http://www.moteur-perkins.com/uploads/catalogue/lettre/notice/manuel-perkins-ld-4-236.pdf

... 2 If an antifreeze mixture, other than Perkins POWERPART, is used to prevent frost damage, it must have an ethanediol base (ethylene glycol) with a corrosion inhibitor. It is recommended that the corrosion inhibitor is of the sodium nitrite or sodium benzoate type. The antifreeze mixture must be an efficient coolant at all ambient temperatures and it must provide protection against corrosion. It must also have a specification at least as good as the requirements of the standards below:
United Kingdom: BS.6580 MOD AL39: "Specification for corrosion inhibiting, engine coolant concentrate (antifreeze)". ...

My question is does anyone recommend a good source of "ethylene glycol" anti freeze with "sodium nitrate" or "sodium benzoate" inhibitor? A telephone discussion with my local Halfords advised me that they do not stock and can not order in ethylene glycol anti freeze. Any other advice on this matter appreciated.

Thanks, BlowingOldBoots

 

[Davy_S]

You could have a look at Prestone antifreeze.

Prestone's Coolant/Antifreeze is guaranteed to be compatible with all cars, vans or light trucks. Thanks to its unique and patented formula, Prestone Coolant/Antifreeze remains the only coolant on the market that can be mixed with another product within the cooling system without causing damage.

 

[tillergirl]

I always get fluids for my Perkins 6.354 from: Anti-Freeze for Classic cars

Reliable sensible people I think.

 

[VicS]

My boat came with a large drum of antifreeze which I have been using over the years to dilute into the coolant water. It is now all used up and I dont have the drum details. It appears that the type of antifreeze I buy may matter.

https://www.mg-cars.org.uk/imgytr/hints&tips/antifreeze.pdf


Choosing the Right Coolant for Your Car


http://www.moteur-perkins.com/uploads/catalogue/lettre/notice/manuel-perkins-ld-4-236.pdf


My question is does anyone recommend a good source of "ethylene glycol" anti freeze with "sodium nitrate" or "sodium benzoate" inhibitor? A telephone discussion with my local Halfords advised me that they do not stock and can not order in ethylene glycol anti freeze. Any other advice on this matter appreciated.

Thanks, BlowingOldBoots

I think you will find that sodium nitrite/ sodium benzoate as an inhibitor package is obsolete.

Any low silicate, non OAT antifreeze from Halfords or any other motor factor will be suitable It will most likely be blue or green ( OAT is usually red or yellow) but read the label .. dont trust the colour

Halfords Silicate antifreeze or Comma X stream G48 are thee two alternatives available from Halfords They are both avaialble as concentrate, or ready mixed if you prefer

Halfords told you they do not stock and cannot order ethylene glycol antifreeze ?.......... That just goes to show what dickheads Halfords employ or how useless your local branch is.
Both the above are available click and collect in 1 hour from my local branch

Compare Products | Halfords UK

 

[Deleted member 36384]

... Halfords told you they do not stock and cannot order ethylene glycol antifreeze ?.......... That just goes to show what dickheads Halfords employ or how useless your local branch is. ...

My impression was that they didn't know what they were talking about.