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Chevrolet/fresh water coolant instead of anti-freeze

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Question
96 chev silverado 5.7 vortec 180k

I put about 1/2 gal RV-Marine fresh-water coolant in the reservoir.  Will it hurt anything ?

Motor already has anti-freeze (D*oh on my part) and has not cycled reservoir contents yet.

thanks for your help

Jennifer

Answer
I HAVE A 99 SILERADO AND I PUT NOTHING BUT ANTIFREEZE AND TAP WATER IN IT. WHAT IS MARINE FRESH WATER IS THAT FOR A FISH TANK ? IF SO YOU ARE OK BUT IF YOU LIVE IN A COLD AREA DO NOT BE ADDING WATER FROM NOW ON ADD ANTIFREEZE OK . AS LONG ASD THAT WATER IS FREE OF CHEMICALS YOU WILL BE FINE BUT AGAIN ADD ANTIFREEZE FROM NOW ON AND WHEN YOU ADD A LITTLE TO THE RESERVOIR  USA A MIX OF 1/2 WATER AND 1/2 ANTIFREEZE FROM NOW ON. AND DURING THE WINTER USE ANTIFREESE  AND USE A GAUGE TO TEST ITS FREEZING RATE. AT WHAT TEMP IT WILL FREEZE OK YOU SHOULD BE JUST FINE - AND REMEMBER USE GOOD OIL AS THAT CHEEP OIL IS ONLY GOING TO HURT THAT MOTOR OK.
BIGW45

Chevrolet

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Roger J.M. Warrington

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I can help you with most standard type things from 1955 chevys up to around 1975 (1975)>> chevys in differnt areas. engine work heads-cams-trannys-drive train-brakes-some elect. dos and donts. PS UP TO 1975 !! !!!!!!!!!!! I will try with any others after that date. state up to 1975 but I still get 2006-007 etc. I guess you do not read this far ! !

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All i can remember growing up is working on cars and making them loud and fast , and when i started to make money i would sink all of it into my cars so i could get them to go faster and look great. what else is there !I would love a challange to trouble shoot, as it is fun finding what is wrong when all others can not .ON the older cars not past 1975s , etc. so please I will try to help with the newer cars but do not grade me bad if I can not help your 2006 car.etc.

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