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I gave my F250 to a specialized radiator service and they did the procedure with VC-9 and replaced the coolant with 50/50 CAT ELC . The strange thing is that it did not require around 4 gallons of 100% concentrate to be diluted to 50% but only a bit more that half of that (27.5 quarts would be the refill capacity a far as I know). What is wrong here and do I now have a mixture of Ford coolant, a rest of VC-9 and CAT EC-1 in it?
They should have flushed ALL the VC9 out of it! If not, you'd better get it out ASAP.
How can I know if ALL VC-9 is out? I was not present when thy did the job and I only know that they said, that my information of this 27.5 quarts must be wrong as when they drained the original coolant there were less than this 27.5 quarts drained and at the end from the 4 gallons of ECT coolant only around 2 were used to fill the coolant system after they did flush it with distilled water and sucked the water with vacuum as far as I understand what they explained.
You need to redo the flush. You cannot drain and/or suck out all of the coolant. Some of it stays in the system.
The whole point of flushing many times with distilled water is to continually dilute what remains until it is as much distilled water as possible. Then you fill with 3.5 gallons of coolant for a 50/50 mix.
You need to redo the flush. You cannot drain and/or suck out all of the coolant. Some of it stays in the system.
The whole point of flushing many times with distilled water is to continually dilute what remains until it is as much distilled water as possible. Then you fill with 3.5 gallons of coolant for a 50/50 mix.
They diluted several times and drained and did suck out the VC-9 and distilled water and had the coolant premixed to 50/50 and filled I guess with 4 gallons of this premix calculating from the left over of 2 gallons premix and 1 gallon of concentrate.
Talk to the shop and ask what was there procedure to ensure the VC9 was completely flushed out of the system.
Like dchamberlain said it take 3.5 gallons of concetrated coolant to fill the system back to 50/50 however if your shop used a coolant that was already at a 50/50 then I would think it would require 7 gallons of coolant to get your cooling system to a 50/50 ratio.
Also make sure your shop used distilled water and not regular tap water.
Talk to the shop and ask what was there procedure to ensure the VC9 was completely flushed out of the system.
Like dchamberlain said it take 3.5 gallons of concetrated coolant to fill the system back to 50/50 however if your shop used a coolant that was already at a 50/50 then I would think it would require 7 gallons of coolant to get your cooling system to a 50/50 ratio.
Also make sure your shop used distilled water and not regular tap water.
I know that they only used distilled water and no tapwater.
They said that with draining and suck with vaccum everthing came out of the system and I would be missinformed that the cooling system capacity was 27.5 quarts. With their method everthing would come out and because less than 27.5 came out I must be wrong.
Is it sure that the F250 has 27.5 quarts?
Is there a 'hidden' part of perhaps 8 -10 quarts which can not be taken out with their method?
Would this part mix with VC9 while driving and remain while several flushes with distilled water are done? This woould mean there is still VC9 in the system.
They diluted several times and drained and did suck out the VC-9 and distilled water and had the coolant premixed to 50/50 and filled I guess with 4 gallons of this premix calculating from the left over of 2 gallons premix and 1 gallon of concentrate.
It is next to impossiable to get "ALL"of the 27.5 qts out of the system so that is the reason everyone reccomends non-deluted ELC. If they gave 2 gallons back to you that means the system contains 19.5 quarts of water and 8 quarts of ELC resulting in a 29-71 mixture. The simple solution is for them to buy 2 new gallons of Cat ELC and give it to you. From there you decide if A.They reflush and fill B.You do it your self C. You have a 3rd party who is detail minded do it. I certainly do not believe and damage resulted but needless to say,it needs corrected soon.
I know that they only used distilled water and no tapwater.
They said that with draining and suck with vaccum everthing came out of the system and I would be missinformed that the cooling system capacity was 27.5 quarts. With their method everthing would come out and because less than 27.5 came out I must be wrong.
Is it sure that the F250 has 27.5 quarts?
Is there a 'hidden' part of perhaps 8 -10 quarts which can not be taken out with their method?
Would this part mix with VC9 while driving and remain while several flushes with distilled water are done? This woould mean there is still VC9 in the system.
I will go to the shop tomorrow and verify again.
Fords Owners Guide Supplement under Maintence and Specifications states coolant capacity is 27.5 quarts/26 Liters.
The only way I know how to tell if you completely removed the VC9 is when you can flush the system with distilled water and it drains clear.
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