coolant change. How much coolant do I need? - Dodge Cummins Diesel Forum
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post #1 of 5 (permalink) Old 08-06-2013, 09:56 AM Thread Starter
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coolant change. How much coolant do I need?

Ok so I'm planning on changing my coolant out here and I was wondering how much I need to get? Im going to get the mopar coolant at the dealer. Which is straight coolant and needs to be mixed. So much coolant and how much distilled water do I need?


2007.5 2500 White SLT quad cab 6.7 liter totally stock. Is the CEL supposed to stay on? 34,000 miles. 2nd stock turbo. white 3.73 rear differential ratio. J35 recall. 2 wheel drive. Plan on a DPF and EGR delete when I come up with the $$$$.
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post #2 of 5 (permalink) Old 08-06-2013, 02:02 PM
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The coolant capacity is in your owners manual. Whatever it is just cut it in half and that's how much of each.
I think I bought 2 gal of antifreeze and 2gal of water for the fill and another 4gal of water for the flush.
Have you considered the zerex antifreeze. Its cheaper, provides the same protection and is available at napa

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post #3 of 5 (permalink) Old 08-06-2013, 02:48 PM
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You need to remove water pump to get all coolant out. You can really flush block with pump out also. Two gallon antifreeze and two gallon distilled water will do fine. Buy another gallon of H2O if want to give final flush before fill. Thermostat ???? sure!

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post #4 of 5 (permalink) Old 08-09-2013, 11:45 PM Thread Starter
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yes im changing the thermostat and radiator cap also. Am I going to lose a bunch of coolant with removing the thermostat? I'm not going to remove the water pump. That's too much of a hassle.

2007.5 2500 White SLT quad cab 6.7 liter totally stock. Is the CEL supposed to stay on? 34,000 miles. 2nd stock turbo. white 3.73 rear differential ratio. J35 recall. 2 wheel drive. Plan on a DPF and EGR delete when I come up with the $$$$.
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post #5 of 5 (permalink) Old 08-09-2013, 11:47 PM Thread Starter
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Quote:
Originally Posted by xcc_rider View Post
The coolant capacity is in your owners manual. Whatever it is just cut it in half and that's how much of each.
I think I bought 2 gal of antifreeze and 2gal of water for the fill and another 4gal of water for the flush.
Have you considered the zerex antifreeze. Its cheaper, provides the same protection and is available at napa
Is the zerex coolant the distributor for mopar coolant? I checked at the parts store and it's $5/gallon cheaper than the mopar.

2007.5 2500 White SLT quad cab 6.7 liter totally stock. Is the CEL supposed to stay on? 34,000 miles. 2nd stock turbo. white 3.73 rear differential ratio. J35 recall. 2 wheel drive. Plan on a DPF and EGR delete when I come up with the $$$$.
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