Environmentally friendly coolants?

[Luv2DooIt]

I am a bit confused by the statements in my new boat owners manual (2008 Challenger SE - 215hp) with a closed cooling system.

It says "always use ethylene-glycol antifreeze containing corrosion inhibitors specifically for internal combustion aluminum engines". Okay....and the replacement BRP fluid I believe is consistent ..... as i think it is a ethylene-glycol.

But here is the odd point. The next paragraph says "Note: When available, it is recommended to use biodegradable antifreeze compatible with internal combustion aluminum engines. This will contribute to protect the environment."

I do not think ethylene-glycol is biodegradable, whereas propylene-glycol is. Is there a suggested better coolant, like AMSOIL Antifreeze and Engine Coolant? Does BRP sell a different coolant? Or is that a feel good statement with no basis of fact nor commitment by BRP?

I will always pay a bit more for a more environmentally friendly solution, but without a BRP solution or recommentation on type and brand, I do not want to ruin an engine.

 

[seadoosnipe]

The eco system....

I'm not into or have researched the difference but the requirements are to use an antifreeze that's designated for aluminum engines. Well, 20 years ago, when aluminum engines were for the expensive cars, it wasn't readily on the market. Now, with 90% of the cars manafactured with aluminum blocks, I think most anti freeze you will find in your local auto supply store, is that designed for the aluminum engines............as for biodegradable. I would think it's all biodegradeable once it's diluted with 1,000,000,000 to 1. You could probably drink it then!..........:rofl:
Kidding aside.......you can capture your liquids and take them for disposal at your local auto parts store. They will take them free of charge.