NEVER EVER USE AUTO ANTIFREEZE TO WINTERIZE YOUR BLOCK!!!!
Curious to your reasoning here...only thing I can think of is the environmental issues. I have used auto antifreeze as a piece of mind in my boat engine for years but DO always flush it thoroughly before heading to the lake. I have a hugh stone driveway and always test run the motor before heading to the ramp for the first outing. The previous owner told me he used antifreeze over the winter after draining the block so I continued the tradition and I must say for an original 1983 engine there is not much rust inside when compared to other engines I have helped guys work on. For the few bucks in cost I guess it is just some piece of mind as long as it is drained out and flushed before going to the lake!!
It is a sweet smelling liquid so animals are attracted to it. It would take a lot of water to flush it out and catch it all. The idle relief ports blow it all over the place. You would need a 100 gallons probably to make sure it is all out and then try to figure out what to do with all that liquid.Ethylene Glycol (aka automotive anti-freeze) is poisonous to humans, and other animals. 1.4mL is considered toxic to humans and even less for small animals. Plus in most locations it is against the law to knowingly discharge into the environment. I would be extremely concerned if I was on well water and a neighbor or even myself.
I hope you didn't think my post was disagreeing with you. It was just meant to add to why you shouldn't use auto antifreeze in a boat on the raw side.It just unthinkable to dump it on driveway intentionally. Accidentally - that's different, but the post above clearly is doing it without regard to the environment.
Ethylene glycol is toxic but will break down when exposed to air in 10 days and will break down in several weeks when introduced to the ground or water. Airports still use it in deicing fluids on planes and runways, but propylene glycol is used most of the time.
If simply putting it to bed over the winter, start it, starve(fuel) it, drain it(block/manifolds), use a bit of compressed air to blow all passages out, give the linkages a quick coat of WD40 and cover it with something that breathes.
Also, it is 100% legal to dump it down the drain in most areas. It breaks down fairly easily.
Also, it is 100% legal to dump it down the drain in most areas. It breaks down fairly easily.
Sure, it breaks down - but it's not legal to dump it into a storm drain, and most wastewater treatment plants don't want you dumping it into a sanitary sewer drain. That may be illegal too. It's never a good ides to discharge hazardous materials into the environment.
Drink some and let me know.It's not a hazardous material in itself. Possibly it may be considered hazardous after being in an engine for a lengthy time and picking up metals and contaminants.