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coolant concerns

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Old Jun 1, 2015 | 11:28 PM
  #1  
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coolant concerns

well about a week ago my truck was leaking coolant because a line rubbed over time and made a hole so i cut that part of the line out, put a fitting in, and clamped it down, boom leak fixed. however my truck was very low on coolant by the time i fixed it, i actually had to stop on the way home and buy 2 jugs of water that i poured into the coolant tank to keep me from overheating. my concern is that i didnt have alot of time as i needed the truck to drive the next day so i filled it up with some prestone 50/50 coolant. ive heard that alot of bad things can happen from the cooling system/coolant not being set up right and that there is a addative thats supposed to go into our diesels coolant. can the prestone 50/50 hurt or be bad for my engine in any way? do i just need to buy this addative and put it into my coolant tank and ill be good? id hate to drain it all out because i put 4 gallons of coolant into it but id much rather do that than mix oil and coolant or have holes where there aren't supposed to be holes. thanks in advance
 
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Old Jun 1, 2015 | 11:55 PM
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I've always felt it best to not mix different brands of coolant. For me it's just a preference.
 
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Old Jun 2, 2015 | 08:16 AM
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Assuming the 50/50 Prestone was the old school green antifreeze, you will be fine. You don't want to mix the old school green coolant with the new style amber colored EEC coolants. Add some SCAs to the mix, and check for freeze protection, as it is lowered from the 2 gallons of water you added.
 
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Old Jun 2, 2015 | 08:19 AM
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My light came on for low coolant level, i added antifreeze but the light is still on. What could be causing this to happen and how can i fix it. also are you not suppossed to mix the green and orange antifreeze?

Fallick
 
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Old Jun 2, 2015 | 08:39 AM
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Originally Posted by DocFallick03
My light came on for low coolant level, i added antifreeze but the light is still on. What could be causing this to happen and how can i fix it. also are you not suppossed to mix the green and orange antifreeze?

Fallick
You must be driving a newer vehicle, as the OBS trucks don't have a low coolant light. LOL As for the green and orange coolant, I was told not to mix them. The green is the glycol based stuff, and the Amber/orange stuff is something else. Many years ago the glycol based antifreeze was pink, now it is green.
 
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Old Jun 2, 2015 | 11:06 AM
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I'm pretty sure the coolant I put in was green so that's good. But what's are sca's?
 
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Old Jun 2, 2015 | 07:00 PM
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SCAs= Supplimental Coolant Additive It is an additive that coats the coolant passages in the block to prevent cavitation of the cylinder walls, caused by air bubbles in the coolant that eat into the cylinder walls during combustion. The old IDI 7.3 were famous for cavitation as the block wall were thinner.
 
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Old Jun 2, 2015 | 07:12 PM
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okay thanks I'll have to look around for some I'm not sure if any local stores around here have it
 
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Old Jun 2, 2015 | 07:14 PM
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Originally Posted by Haywire-Powerstroke
okay thanks I'll have to look around for some I'm not sure if any local stores around here have it
If you have a NAPA store nearby ask for NAPACOOL.
 
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Old Jun 4, 2015 | 10:03 AM
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^^^^ Option - if you're replacing / flushing the coolant, you can get anti-freeze that's "pre-charged" with SCA. Note - this is distinct from "extended life" or "ELC" designation; it's specifically formulated with SCA so you don't have to add it separately. Some brands are _based_ on old-school ethylene glycol (aka "green") forumation, and others are _based_ on ELC formulation. The most commonly available one that's based on "green" formulation is Fleet Charge (note, that's Fleet CHARGE, not FleetGUARD), made by Peak. It's the old-school formulation, but it's dyed pink. Best price I've found is to buy it at Advance Auto, order it online for in-store pickup, and use discount code TRT30 ; that code seems to be active all the time, and knocks 30% off. Takes it down to aprx. $11 / gallon, which is cheaper than buying "green" old-school anti-freeze and SCA separately.
 
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Old Jun 4, 2015 | 12:50 PM
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Tried to rep you madpogue, but it won't let me.
 
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