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Old 04-05-2019, 06:30 PM   #61
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Default Re: Coolant Change

I have an early '02 T1N, two models were built in '02. Does anyone know or can tell me where I can find the capacity of my radiator/coolant system?
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Old 05-21-2019, 12:29 AM   #62
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Default Re: Coolant Change

Finally a bonus left from the previous owner and to O P. First time really good flush. What a great help having the drain tube in permanent, convenient route and holes. I went a bit more and added 5/8 clear flex hose to the end of the hose then onto my field barrel I use for concrete work. I am doing three full flushes with the prestone cleaner in between - for a few days.

I dreaded the drain knob being stuck but was fortunate, easy hand tight and loosen. Thought about removing for inspection but left well enough alone. that is a no look hidden hole. A couple of turns only and removing the fill cap, about a 5 min drain. About 9 lts came out.
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Old 05-21-2019, 03:21 PM   #63
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Default Re: Coolant Change

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Originally Posted by white whale View Post
... I am doing three full flushes with the prestone cleaner in between - for a few days.

...
Not that you asked...

If the coolant has been changed on schedule, I would not use the cleaner. That is especially true for an extra long soak. Some cleaners have been reported to cause more problems than they avoid.

vic
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Old 05-23-2019, 08:48 PM   #64
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Default Re: Coolant Change

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Originally Posted by Aqua Puttana View Post
Not that you asked...

If the coolant has been changed on schedule, I would not use the cleaner. That is especially true for an extra long soak. Some cleaners have been reported to cause more problems than they avoid.

vic
If Prestone was in the rad making business I'd have pause to consider. All seems to fine so far.
I'd actually never heard of this stuff before. It did give options for quick 10 min rinse/flush or you could let it slosh around for a few days. Reservoir had a good head of foam on it from first bottle.

I had no engine history on the first 250K so a fresh point for me. dead easy with the permanent drain tube. Good way to find out from my other post on whether the coolant level sensor is hooped is confirmed. Yes.
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Old 05-23-2019, 09:42 PM   #65
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Default Re: Coolant Change

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Originally Posted by white whale View Post
... Reservoir had a good head of foam on it from first bottle.

...
That can be an indication of chemical reaction. My question is whether that foam is a result of corrosion/crud being cleaned, or aluminum or other coolant system parts being corroded/eroded away. Or maybe it's just caused by a surfactant type cleaner. I have no data.

Short soak vs long soak? Don't solicit opinions on the internet. If you chose to use the product my recommendation is to follow the manufacturer's instructions to the letter.

vic
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Old 05-23-2019, 09:46 PM   #66
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Default Re: Coolant Change

My general approach with an unknown system, is to drain it first. Then with the drain open, direct a stream of a hose nozzle into the radiator. The goal is to dislodge any crud that has built up at the bottom of the radiator. In some cases back flushing this way into the drain for sort period. catch what comes out. If it looks like mud or dirty pond water, a full flush is likely called for. If not, I would just refill and keep on trucking.
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Old 09-15-2019, 08:53 PM   #67
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Default Re: Coolant Change

Excellent information here, thanks everyone!
I'm still pondering about the coolant color differences. The coolant I have (of unknown origin and history) green. Would draining it (through the radiator red drain thingie) and replacing with distilled water, running a temperature cycle, draining again and filling with G05 50/50 be the best way towards replacing this unknown coolant?
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Old 09-16-2019, 08:39 PM   #68
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Default Re: Coolant Change

Quote:
Originally Posted by eranrund View Post
Excellent information here, thanks everyone!
I'm still pondering about the coolant color differences. The coolant I have (of unknown origin and history) green. Would draining it (through the radiator red drain thingie) and replacing with distilled water, running a temperature cycle, draining again and filling with G05 50/50 be the best way towards replacing this unknown coolant?
Yes but also flush with hose as mentioned. May have to dig a little in this thread a write up w/ pics I posted that may also help you.
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Old 09-16-2019, 08:47 PM   #69
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Default Re: Coolant Change

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Yes but also flush with hose as mentioned. May have to dig a little in this thread a write up w/ pics I posted that may also help you.
What if I don't trust the local water to be mineral-free enough? Is that an issue?
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Old 09-16-2019, 09:14 PM   #70
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Default Re: Coolant Change

Only true hard water is a concern, water thats nasty to drink. If you are just rinsing, it doesn't matter anyways. The vast majority of tap water in the USA is less than 500ppm, so the impact on the coolant life is insignificant.
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