Coolant for 300tdi

LeadFarmer · Mar 10, 2020

Is this a suitable coolant for a 1996 300tdi? Defender?

Flossie · Mar 10, 2020

Disco1BFG · Mar 10, 2020

Another Yes from me

LeadFarmer · Mar 10, 2020

50:50 ratio with water?

Flossie · Mar 10, 2020

LeadFarmer said:
50:50 ratio with water?

Read the container for mix ratios. I do 2/3rds AF to 1/3 water.

mick 1986 · Mar 10, 2020

LeadFarmer said:
Is this a suitable coolant for a 1996 300tdi? Defender?

I’m not sure what coolant the 300tdi needs, but the 200tdi needs IAT. IAT is “usually” blue, but Halfords went through a phase of selling OAT in blue and pink. I wouldn’t trust the colour of the liquid, but check the type of coolant it is, OAT or IAT.

Disco1BFG · Mar 10, 2020

300Tdi needs Ethylene Glycol antifreeze 50/50 with water, preferably distilled water - from the handbook, P93:-

"Use an Ethylene Glycol based anti-freeze containing no methanol with non phosphate corrosion inhibitors suitable for use in aluminium engines"

lynall · Mar 11, 2020

Flossie said:
Read the container for mix ratios. I do 2/3rds AF to 1/3 water.

That is to much af, once past 50/50 which goes down to minus 30 degc, you are actually weakening the frost protection, and the cooling effect.
Iirc neat anti freeze will actually freeze.
Also have to be careful on later motors as to high an a/f concentration can effect the floats for sensors etc

kermit_rr · Mar 11, 2020

lynall said:
That is to much af, once past 50/50 which goes down to minus 30 degc, you are actually weakening the frost protection, and the cooling effect.
Iirc neat anti freeze will actually freeze.
Also have to be careful on later motors as to high an a/f concentration can effect the floats for sensors etc

+1^^^

Also think too much can attack aluminium but don't recall where i read that

Flossie · Mar 11, 2020

lynall said:
That is to much af, once past 50/50 which goes down to minus 30 degc, you are actually weakening the frost protection, and the cooling effect.
Iirc neat anti freeze will actually freeze.
Also have to be careful on later motors as to high an a/f concentration can effect the floats for sensors etc

.
Noted, ta.

Al2O3 · Mar 12, 2020

Use Gin 60:40 Tonic. That way, if you break down, nowt's a bother until help arrives.

Edit
You might want to carry a cool box with a lot of ice in it.

Edit 2
And a lemon.

Henry_b · Mar 12, 2020

kermit_rr said:
+1^^^

Also think too much can attack aluminium but don't recall where i read that

It turns too alkaline and corrodes the engine from the inside out.

Horrible,

And as Lynall says it freezes when neat and/or turns to a syrup..

Horrible..

Coolant for 300tdi

LeadFarmer

Well-Known Member

Flossie

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Disco1BFG

Well-Known Member

LeadFarmer

Well-Known Member

Flossie

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mick 1986

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Disco1BFG

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lynall

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kermit_rr

Very

Flossie

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Al2O3

Well-Known Member

Henry_b

Think outside, no box required.

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