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Discussion Starter #1 (Edited)
I've researched and read up on the G-05 Coolant made by Valvoline. Before you dismiss it, please read Valvoline's Spec Sheet at the url below

http://www.valvoline.com/pdf/zerex_g05.pdf

A 40:60 coolant to water mix provides freeze protection down to -12 and boil over protection up to 260*. The 60% water, since water is what cools (not the coolant) will also keep my V running a bit cooler. Sounds all good to me! I'm taking the plunge and doing a flush/refill next weekend with the G-05. Runs $14.99 per gallon on Amazon. Auto Parts stores and Walmart also carry it. Be sure to use distilled water.

The green stuff in your radiator now is good enough, but I want the best in my V.:D
 

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Don't buy pre-mix if you can help it. You are just paying big money for water and it is difficult to get a 50/50 mix with 50/50 because you don't get everything out when you drain the cooling system.
 

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It says "lower silicate". Check it out, I think for aluminum motorcycle blocks antifreeze needs to be silicate-free. The one invader posted is silicate-free, I'd go with that one.
 

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Another old wives tale. What the factory service manual says, "Permanent type of antifreeze (soft water ethylene glycol plus corrosion and rust inhibitor chemicals for aluminum engines and radiators)"

When I got my '12 leftover home I noticed some "gunk" in the coolant tank so I drained and flushed and filled with the G-05.

Any of the antifreezes will probably work O.K. in the Versys but they are not compatible so you need to flush the system good before changing types.

I have several motorcycles that I've been using G-05 in, KLR with about 100,000 miles and '04 ZX-10R so it ain't gonna make your motor fall apart.
 

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Discussion Starter #6
Valvoline approves G-05 for use in all engines, including aluminum. Silicates are a non-issue.
 

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Prestone Extended life coolant is phosphate, silicate, and borate free. Been using it for many years for motorcycle cooling systems.

Silicates have a tendency to eat water pumps on motorcycles. Many of the water pump failures that we see are shortly after the owner has flushed the coolant.....

There are other coolant manufacturers that have phosphate, silicate, and borate free coolant. Be sure to read the container, then just pick one.
 
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