Reusing Fresh Coolant

Joined
Jun 28, 2003
Messages
6,637
Location
Illinois
I found a good use for old coolant. All the gallons I've dumped over the years.

Used by itself it's a good wood preservative. Mix in Borax and it's also a insect repellant.
 
Joined
Aug 21, 2012
Messages
956
Location
South Carolina
In our (now totaled) Santa Fe (RIP...moment of silence....and done.)

Did a complete flush and fill of coolant system at 100K. At 103K, starter died. When changing it out, you have to remove one of the coolant hoses that runs right in front of the bolts for the starter. (The hose turned to dust as I was taking it off, but that's for another thread.)

Had to drain quite a bit of fluid to avoid a big mess. I used a couple of VERY clean buckets to catch the fluid. It all came out looking extremely clean. When job was done, it went right back in.

Car was totaled at 168K, no issues with reusing the coolant.
 
Joined
Aug 21, 2012
Messages
956
Location
South Carolina
I found a good use for old coolant. All the gallons I've dumped over the years.

Used by itself it's a good wood preservative. Mix in Borax and it's also a insect repellant.
Funny you should mention this. A guy I served with, when he puts up wooden fences, lets the treated wood dry for about 6-8 weeks. Then he paints it with....ATF. He swears by it.
 
Joined
Jun 28, 2003
Messages
6,637
Location
Illinois
Funny you should mention this. A guy I served with, when he puts up wooden fences, lets the treated wood dry for about 6-8 weeks. Then he paints it with....ATF. He swears by it.
You can buy a high dollar wood fungicide/insecticide meant for pretreating or in place. But all it is is concentrated glycol and borax that you dilute.
 
Joined
Jul 10, 2022
Messages
105
Mine seems to be ok, but I've heard this part often contributes to a leak.

The beauty of BMW is being able to choose if you want OE, OEM, or aftermarket. I often go OEM for savings. Here, all 3 alternatives are in fact aftermarket, not OEM, so I would go OE if it were me...


 
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