It is an environmentally hazard chemical. Use only what you need and change only if you are absolutely certain that you need to. Changing prematurely just to feel good about servicing your vehicle may not actually be good
On Sun, Nov 18, 2018 at 9:50 PM Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote: > I have seen auto parts stores with "used oil" tanks. I feel like they > also had a "used antifreeze" tank too. Might want to give your local store > a call. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37 + > Solomons, MD > > On Sun, Nov 18, 2018, 7:20 PM Jim Reinardy via CnC-List < > cnc-list@cnc-list.com wrote: > >> This is a tangent off the original question, but does anyone know what to >> do with the old antifreeze? My city will take motor oil but not >> antifreeze. It’s been holding me back from changing it out lately, but I >> really need to do in the spring. >> >> Thanks, >> >> Jim Reinardy >> C&C 30-2 “Firewater” >> Milwaukee, WI >> >> Get Outlook for iOS <https://aka.ms/o0ukef> >> >> >> >> On Sun, Nov 18, 2018 at 9:16 AM -0600, "Bruce Whitmore via CnC-List" < >> cnc-list@cnc-list.com> wrote: >> >> Hello Robert, >>> >>> Below is a post I put on the board about a month ago, which speaks to >>> the issue of the coolant itself. Your boat may be sufficiently old that >>> all its ever had is the standard green antifreeze, but nonetheless, you >>> will probably find this interesting. In the end, rather than having the >>> concern about Dextron antifreeze causing head gasket leaks hang over my >>> head, I am going to go with the newer "universal" long-life coolant, which >>> I believe is yellow (though the color means nothing anymore). As for the >>> frequency of coolant changes, Yanmar now recommends changing it EVERY YEAR >>> even if it is long-life coolant. The primary job of coolant (other than >>> keeping it from freezing) is stopping corrosion in the engine, and coolant >>> breaks down over time (especially the old style green coolant). This is >>> why they developed "long life" coolant which is supposedly good for 5 >>> years. >>> >>> So, I'll probably plan on replacing the coolant every 2 years at the >>> same time I replace my impeller. >>> >>> Hope you find the reading below helpful. >>> >>> Hello all, >>> >>> As a result of a concern about tracking down a potential antifreeze leak >>> (which I haven't done yet), I wanted to confirm the coolant type. There is >>> no mention as to specific types either in my 3JH2E operating or service >>> manuals. Yes, I could go (way) out of my way to get Yanmar branded >>> coolant, but let's face it - it is not only way more expensive, its >>> available almost exclusively at Yanmar dealers, and the nearest one to me >>> is 15 miles away and isn't open on Saturdays or Sundays. And of course, >>> what happens if you need more when you're out cruising? >>> >>> In doing research, I found the following bulletin, published by Mack >>> Boring: >>> https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=2ahUKEwizh_zu8Y3eAhWOy1MKHSFlD3cQFjADegQIBxAC&url=http%3A%2F%2Fldmarineservice.com%2Ffiles%2Fyanmar_bulletins.pdf&usg=AOvVaw3WK3R6vfJyTHOt5yGzFMDZ >>> >>> In the section about coolants, it recommends: >>> >>> Texaco Long Life Coolant, numbers 7991 and 7998. Unfortunately, one >>> really can't find either product on the web, so I can't seem to find if it >>> was orange (DEXCOOL) or red for diesels, or for that matter if it was >>> ethylene glycol or propylene glycol based. >>> >>> Havoline Extended Life Anti-Freeze/Coolant, number 7994. Per this link, >>> 7994 is DEX-COOL, but is ethylene glycol based. >>> https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwij_o2I843eAhWK0FMKHXc5AfMQFjAAegQICxAC&url=http%3A%2F%2Fwww.rialtainfo.com%2Fvw%2Fvw_images%2Fradiator_%26_coolant.pdf&usg=AOvVaw3ZxHApMqFHHgB-qcUwOYWa >>> >>> Dex-Cool Long Life Coolant, which at least at the time of introduction >>> was propylene glycol based and is Organic Acid Technology (OAT) thus >>> meaning less toxic. Funny thing is, Dex-Cool was not even introduced until >>> a year after my boat was built (1995) and at the time, was only being used >>> in GM cars. >>> >>> Prestone Extended Life Coolant, product code AF888. Per the attached, >>> guess what, it's Dex-Cool. >>> https://www.autozone.com/antifreeze-radiator-additives-and-windshield-wash-fluid/antifreeze/prestone-antifreeze-engine-coolant/87934_0_0. >>> It is ethylene glycol based, but Prestone says it is OAT, which would seem >>> to conflict with what I can find about traditional Dex-Cool. >>> >>> Not entirely satisfied, I wanted to see what a Yanmar official >>> publication recommended. In a 2009 JH Series Operation Manual, it >>> recommends Texaco 7997 and 7998 (same as above). It also recommends >>> Havoline 7994, as above. It however says nothing about Dex-Cool or >>> Prestone AF888. I get similar results in a 3JH4E manual. >>> >>> Then, of course, I was faced with the fact that while I used Prestone >>> AF888 when I flushed and replaced my coolant, I was replacing what appeared >>> to be traditional green coolant (presumably old-style ethylene glycol). I >>> only now read a lot of horror stories of replacing green with orange >>> Dex-Cool, saying that one can never flush out the system sufficiently to >>> keep the orange coolant from gelling to the point the engine overheats. >>> >>> So, at this point I have no real idea what to thing other than the >>> Prestone AF888 I used should be OK as long as it doesn't a). Turn color >>> B) Gel up and c) My engine temperature stays OK. >>> >>> Sigh... >>> >>> Does anyone else here have anything more authoritative? (In the end I >>> did not receive any posts that were more authoritative) >>> >>> Bruce Whitmore >>> 1994 C&C 37/40+ "Astralis" >>> (847) 404-5092 (mobile) >>> bwhitm...@sbcglobal.net >>> >>> >>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> >>> >>> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > -- Sent from Gmail Mobile
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