Does anyone here flush coolant the old fashioned way?
#1
Intermediate
Thread Starter
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When I do my coolant flush I still do it the old way:
1. Drain Coolant
2. Add 100% water to cooling system, start engine and let idle for 5-7 minutes with heater on full blast.
3. Repeat process 4-5 times.
4. When I add coolant at the end, I put in a 60% mixture to make a roughly 50% mixture.
It's more time consuming, but very easy. This was the method stated in old repair books, and a mechanic buddy of mine said they did it this way for many years.
Just wondering if I'm the only weirdo doing it this way.
1. Drain Coolant
2. Add 100% water to cooling system, start engine and let idle for 5-7 minutes with heater on full blast.
3. Repeat process 4-5 times.
4. When I add coolant at the end, I put in a 60% mixture to make a roughly 50% mixture.
It's more time consuming, but very easy. This was the method stated in old repair books, and a mechanic buddy of mine said they did it this way for many years.
Just wondering if I'm the only weirdo doing it this way.
#3
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I also do it the "old fashion" way
I've heard rumors that modern day "flushing" using pressurized machines can damage heater cores, radiators, etc.. Anyone else hear of this?
Chris
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I've heard rumors that modern day "flushing" using pressurized machines can damage heater cores, radiators, etc.. Anyone else hear of this?
Chris
#7
Intermediate
Thread Starter
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Originally Posted by actuary
Do you guys just drain it from the radiator? I can't seem to find the drain on the engine block.
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#9
Racer
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I could never find the drain plugs, or they were inaccessible, so I did it old school, too. I didn't use tap water, though. I always have a stash of rain water in my basement that I use to water my plants (less dissolved minerals than tap), so I used that.
You can use the "compressed" air of a ShopVac to blow out an additional quart or two of coolant, allowing you to get more out with each drain. More details at:
https://www.clublexus.com/forums/maintenance/92160-98-00-gs400-compressed-air-coolant-flush-fill-process.html
You can use the "compressed" air of a ShopVac to blow out an additional quart or two of coolant, allowing you to get more out with each drain. More details at:
https://www.clublexus.com/forums/maintenance/92160-98-00-gs400-compressed-air-coolant-flush-fill-process.html