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Old 04-12-2007, 04:48 AM   #1
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I have a read rad 02 Journey with a Cat 330...Last year I changed the coolant and put in 5 year coolant...I plan to check the SCA this summer but not sure of how or where to add it....Some one suggested plumbing an in line coolant filter in front of the heater core..This NAPA filter will add SCA automatically....Is this a good suggestion or is there an easier way to add if needed...thanks RKL
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Old 04-12-2007, 04:48 AM   #2
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I have a read rad 02 Journey with a Cat 330...Last year I changed the coolant and put in 5 year coolant...I plan to check the SCA this summer but not sure of how or where to add it....Some one suggested plumbing an in line coolant filter in front of the heater core..This NAPA filter will add SCA automatically....Is this a good suggestion or is there an easier way to add if needed...thanks RKL
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Old 04-12-2007, 05:09 AM   #3
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I think you just add it to your coolant reservoir and it will mix. Usually no more than 1 pint is necessary...
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Old 04-12-2007, 02:31 PM   #4
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Check the level with an appropriate test kit and then add as needed. Use the right additive to "sweeten" to coolant, if you put in the red extended life, probably won't need any for a couple of years.
Might be a real good idea for you to have a chat with a Cat service person who is knowledgable and willing to share his knowledge of coolant. A NAPA or WIX filter dealer might have a last years master filter cross reference manual he'd let you have, a whole section in the back that addresses any coolant question you might have.
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Old 04-12-2007, 04:01 PM   #5
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thanks guys.....I appreciate the input...RKL
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Old 04-12-2007, 05:45 PM   #6
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I'm certainly no expert but when I first got this rig in '05, test strip showed SCA's low. I put in one pint of Pencool additive purchased at the local FL dealer....just poured it into the reservoir..... after a brief run, the coolant tested right on

Had the system flushed and refilled last fall and I've checked it twice and its OK.
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Old 04-12-2007, 05:56 PM   #7
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I hate acronyms with a passion. What the H*** is SCA's
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Old 04-12-2007, 06:17 PM   #8
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rvarner:

SCA = supplemental coolant additives.
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Old 04-13-2007, 05:49 PM   #9
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Why would I need that? Have never heard of adding SCAs to any coolant. Am I missing something?
Thanks
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Old 04-14-2007, 07:43 AM   #10
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Richard....The proper SCA quantities are necessary to revent erosion of the metals and linings in the cooling system with certain diesel engines....There are test strips to check the 3 specific additives levels...This info should be in your Freightliner book....
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Old 04-15-2007, 01:58 PM   #11
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Can't seem to find it in the Freightliner book. I am looking under the "coolant replacement" section of the "OPERATOR'S/MAINTENANCE" Manual and nothing is said about SCAs.
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Richard
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Old 04-15-2007, 04:09 PM   #12
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Richard...suggest going on Cat or Cummins web site and searching coolant/sca's...or do a search on this forum...RKL
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Old 04-15-2007, 06:08 PM   #13
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Richard, try this:

SCA's Explained
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Old 04-15-2007, 06:12 PM   #14
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Richard You can also go to the Spartan Chassis section of this form -- right under form you are presently in and look at the posting for antifreeze requirements for diesel engines -- good posting there talking about SCA's and the requirements for them and why you need them.
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