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Old 05-24-2019, 08:18 PM   #11
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More important question: Are you "losing" coolant from your system, Mary?
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Old 05-24-2019, 08:22 PM   #12
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I think you need pink or purple with sca, mine is a 2002 international with 7.3 and thatís what it takes.

Iíd look what it is now (color) and maybe call the dealership and or where the bus came from to match it. Iím trying to remember how I figured out what coolant I needed...
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Old 05-24-2019, 09:52 PM   #13
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Originally Posted by peteg59 View Post
More important question: Are you "losing" coolant from your system, Mary?
Yes, I have a leak for sure, though it's slow. I can't find it and no mechanic near me can take a look for a couple of weeks, so I have to bandaid the situation by making sure I'm topped off in the meantime.
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Old 05-24-2019, 09:53 PM   #14
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I think you need pink or purple with sca, mine is a 2002 international with 7.3 and that’s what it takes.

I’d look what it is now (color) and maybe call the dealership and or where the bus came from to match it. I’m trying to remember how I figured out what coolant I needed...
What's in there now looks green but it has a lot of rust in it. I'm thinking I need a radiator.

2002 7.3L would be Powerstroke, wouldn't it? Mine is IDI.
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Old 05-24-2019, 10:57 PM   #15
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Originally Posted by peteg59 View Post
A cheapo prestone squeeze bulb tester is good if strips are unavailable.
The cooling system if stock, holds quite a bit of coolant so a drain and refill could get expensive...

https://www.walmart.com/ip/AF-1420-A...0df199b34d908b
How do you read SCA levels with a specific gravity tester?

I'll stick with the strips.......
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Old 05-25-2019, 05:09 PM   #16
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Test strips should have instructions with them. If not a google search will reveal the procedures for usage. It's pretty straightforward though, dip the strip, wait for it to react, compare your color results to those on the package. Adjust if necessary with the right additive and then drive the bus for a bit and recheck.
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Old 05-25-2019, 05:12 PM   #17
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Originally Posted by Rogue1bus View Post
I think you need pink or purple with sca, mine is a 2002 international with 7.3 and thatís what it takes.

Iíd look what it is now (color) and maybe call the dealership and or where the bus came from to match it. Iím trying to remember how I figured out what coolant I needed...
Use regular green in an idi. If it doesn't have that in it put it in it. The use of modern coolants in an old engine isn't necessary and I've seen too many horror stories of the usage of modern coolant reacting badly in old engines.
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Old 05-26-2019, 08:22 PM   #18
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Originally Posted by B Iooyah45828 View Post
Test strips should have instructions with them. If not a google search will reveal the procedures for usage. It's pretty straightforward though, dip the strip, wait for it to react, compare your color results to those on the package. Adjust if necessary with the right additive and then drive the bus for a bit and recheck.
Peteg59 was suggesting the use of the Prestone SG tester to replace test strips.

I know how to use the test strips. I was asking how toy could manage the same with an SG tester...

I'll stick with test strips.
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Old 05-27-2019, 01:27 PM   #19
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Originally Posted by PNW_Steve View Post
Peteg59 was suggesting the use of the Prestone SG tester to replace test strips.

I know how to use the test strips. I was asking how toy could manage the same with an SG tester...

I'll stick with test strips.
I was replying to firebuild in post #5, where she asked how to use them and what the levels are supposed to be. Nobody answered that question in a way that I thought was sufficient.

My test strip reply wasn't for you, it just happened to follow your post. In no way was I insinuating that you didn't know how to use test strips.
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Old 05-27-2019, 01:36 PM   #20
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Okey dokey thanks all
REmember to ONLY use distilled water in your cooling system. Tap water is bad, its got minerals and stuff.
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