Adding water to truck

GlennWest · February 26

I find about every 4 to 6 months I have to add a gallon of water mix to my truck. Can't see a leak. Doesn't matter if driving or not. It not real inconvenient just concerns me.

GlennWest · February 26

Well just over on truckers forum and they this in normal. Silicone hoses.

spindrift · February 26

It's normal until it isn't. Not saying it isn't the hoses but that reason has begun to be overused. Until all of the requisite pressure tests have been done, you simply don't know.

GlennWest · February 26

Don't currently own a radiator pressure tester. Need to pick one up. Sure looks to me a outside leak I could see. Will the normal tester one gets from Amazon fit our trucks?

Edited February 26 by GlennWest

Moresmoke · February 27

I lose about a gallon every winter from my Volvo. Radiator leaks when it is cold. Never leaks in summertime temps. Eventually the radiator will need replaced but for now it works.

Edited February 27 by Moresmoke

Star Dreamer · February 27

I believe we have sister trucks, Freightliner Century with Detroit 14L. In the 10 years we have owned it, I have not added any water mix to our radiator system, so I would question what your putting in as normal.

Now it is possible that when we get our about once a year PM done, they have added some then but I never notice it on my bill.

You may want to have a good mechanic check it out. Might be the start of something more serious like injectors or head gasket.

Alie&Jim's Carrilite · February 28

On 2/26/2022 at 5:02 PM, Moresmoke said:

I lose about a gallon every winter from my Volvo. Radiator leaks when it is cold. Never leaks in summertime temps. Eventually the radiator will need replaced but for now it works.

We just changed the radiator on our '98 Volvo 610. We had a small crack at the top drivers side tank. In freezing weather you could set it steaming on occasion but not all the time.