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Old 01-12-2019, 07:28 PM   #1
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C7 Coolant

We have a 2006 Bounder with 300hp Cat. Bought it used in 2010. Have been religious about oil changes at 5000 miles or once a year. Have never changed or added anything to cooling system. Has never overheated. Now have about 65000 miles on it. Had coolant checked once in about 2013 and was told it was fine. Have not paid much attention to it since. no leaks and level never goes down.
I believe it is just ‘heavy duty’ standard coolant and not ELC.

Now my question:
Can (should) I get some test strips (where?) and test it or should I take it to a shop (Freightliner or Cat) ? and have it checked. Should I consider switching it over to ELC?
Any input would be appreciated.
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Old 01-12-2019, 08:12 PM   #2
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Cat has a test kit to buy. I changed mine to the CAT ELC at about your mileage.
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Old 01-12-2019, 08:18 PM   #3
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If you do a search, you'll find all kinds of test strips you can compare. Some are not compatible with ELC coolants, some with both. I also use one of the "float" type testers for boiling/freeze point as a double-check.


I check my coolant using test strips annually. I would personally not go years without knowing my coolant was good...too much potential damage to the cooling system and engine. Checking often and knowing is not very costly.


Here's a great source of information on coolants and what to look for and correct, if needed.


http://esource.alstribology.com/WB03...ide-Eckert.pdf
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Old 01-12-2019, 08:25 PM   #4
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Quote:
Originally Posted by firedoc View Post
We have a 2006 Bounder with 300hp Cat. Bought it used in 2010. Have been religious about oil changes at 5000 miles or once a year. Have never changed or added anything to cooling system. Has never overheated. Now have about 65000 miles on it. Had coolant checked once in about 2013 and was told it was fine. Have not paid much attention to it since. no leaks and level never goes down.
I believe it is just ‘heavy duty’ standard coolant and not ELC.

Now my question:
Can (should) I get some test strips (where?) and test it or should I take it to a shop (Freightliner or Cat) ? and have it checked. Should I consider switching it over to ELC?
Any input would be appreciated.
I'm not one of those that goes crazy over CAT oil filters or fuel filters and will use good ones like WIX etc. But, when it come so antifreeze for our C-7 330HP model, I like to go with what CAT recommends. Primarily 'cause of the way the internal engine cooling system is designed. They (CAT) want's fairly specific coolant. I get mine from Napa and it's CAT approved. I don't know about the ELC stuff. Eventually, I too need to flush mine and renew all of the antifreeze.
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Old 01-13-2019, 08:07 AM   #5
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If you haven't done anything in 8 years, it would be a good idea to get your coolant tested. I had a a coolant analysis done by JG Lubricantsthey are an IRV2 sponsor. The owner, Tom Johnson, is a former engineer with Allison and if you have any questions call and talk to him. If you enter "IRV2" in the coupon code, you get a 10 % discount.

https://www.jglubricantservices.com/
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