04-28-2021, 01:58 AM
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Senior Member
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Join Date: Jul 2019
Location: San Pedro, CA
Posts: 247
Thanks: 333
Thanked 58 Times in 38 Posts
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Quote:
Originally Posted by sastanley
Ando, Now that most of us are just about safe from worrying about blocks freezing...
After FWC conversion, I ran my engine for several hours with plain water and some vinegar to try and clean things out before adding antifreeze. I had an entire cruising weekend where I brought a couple gallons of vinegar and a 5 gallon jug of water and ran for a couple hours, drained, re-filled and ran again. If you are lucky enough to get the plain water/vinegar clear, you can probably be safe adding antifreeze.
Agree with a muratic flush before introducing the HX, etc. The risk to simply adding antifreeze is it will be muddy and it is $12/gal and plain water is free and vinegar is cheap.
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I know that I need to remove the thermostat for a muriatic acid flush, but how about a vinegar flush?
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