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Discussion Starter #1
Question...

I have an '02 vn750 w/9000 miles on it.
Before putting the bike up for the winter, I changed out the coolant (First time) and refilled it using PRestone 50/50 premix. The bottle says safe for all aluminum engines.
However, it doesn't say its silicate free. I checked the Prestone website and there isn't much info about it (only dexcool appears too specifically say silicate free).

Do I have to worry? Can I drive with it for the upcoming year, and change it out again next fall w/o any issue or concern?

Or, do I need to change it out with dexcool silicate free coolant?

Thanks,
Dom
 

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Discussion Starter #2
By the way, the Prestone 50/50 mix I used was the 5/150k UNIVERSAL mix.
(Safe for alluminum engines).

Thanks for any advise on this.

Dominic
 

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Discussion Starter #3
I contacted Prestone about this.
They stated that their Universal 50/50 mix (as well as full strength) coolant is in fact SILICATE FREE, and is safe for all alluminum engines!

They stated that older Prestone (non-Universal coolant) may or may not be silicate free. In older bottles, if it states it - it is. If it doesn't - assume its not.

Dominic
 

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Thanks for the info!

Hammer
 
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