Check Post #6....

i think i added all together a whole gallon... the car never used to get warm like this until around this same time i saw my hose was leaking. Also this is with my AC on and it seems to kick my idle down a little. I am going to flush the system this weekend. ill see if it helps a little

i have never even heard of this po system and will check that too

Why is adding to much glycol bad for the motor? I have always heard that water cools alot more but doesn't prevent corrosion.

I clean all my radiators front and back with degreaser when i wash my car when i bought my car the radiator was a brand new behr. I will put my thermo gun on it and see what im getting... where is the best location to test the temp.... and yes the air conditioner is running...

Glycol has a much higher viscosity than straight water. The stronger the mix the higher the viscosity.
High viscosity has 2 negative impacts on the cooling system;
Reduced water pump efficiency so resulting in lower flow rates especially at low RPM.
Increased flow resistance (pressure drop) through the cooling system.
Combining these & you have a significantly reduced cooling system capacity especially at low RPM (idle).
The anti corrosion additives do require some glycol to keep them in solution.

You are probably one of the few who make the effort to keep the outside of your radiator clean !! 10/10

The back end of the head is often the hottest.
The thermostat housing will give you an indication of the temp of the hot coolant going to the radiator.
The return connection from the radiator at the water pump will give you an idea of how much the coolant is being cooled.

This will have an impact on the idle temp as the air first cools the aircon condenser.

When you have been doing some driving at speed, expect the temp to go up when first you drop back to idle. This is known as heat soak. it can last for several minutes (~10).

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

Tip for radiator lovers =>

Radiator Fin Tool | Frost Auto Restoration Techniques

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

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