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[NH Bulldog]

The issue with the coolant pump on the Harley as opposed to a car/truck is that the Harley pump is electric and uses a magnetic drive impeller like a small submersible pond or fountain pump.  It is not a direct driven pump like in a car.  Because of this, it is more susceptible to issues due to "gumming" or debris.  A mechanical pump in a car/truck can overcome the resistance of the "gumming" because it is being directly driven by the engine, but an electric magnetic drive pump cannot, and will stop at some point if it gets gummed up. 

So while your DEXCOOL may be fine for your Cadillac or your Buick, it isn't the best thing for the Harley cooling system.  Like anything else, do some research, and run whatever makes you sleep better at night.     

[DCFIREMANN]

The issue with the coolant pump on the Harley as opposed to a car/truck is that the Harley pump is electric and uses a magnetic drive impeller like a small submersible pond or fountain pump.  It is not a direct driven pump like in a car.  Because of this, it is more susceptible to issues due to "gumming" or debris.  A mechanical pump in a car/truck and overcome the resistance of the "gumming" because it it being directly driven by the engine, but an electric magnetic drive pump cannot, and will stop at some point if it gets gummed up. 

So while your DEXCOOL may be fine for your Cadillac or your Buick, it isn't the best thing for the Harley cooling system.  Like anything else, do some research, and run whatever makes you sleep better at night.    

Exactly. So far I am happy with the change I made. Will I keep the Engine Ice in the bike?? I guess only time will tell. When I return from my trip out west I am going to drain it and look at the coolant. I guess I will make the decision then. So far I am happy with the product.

Be Safe

THE DAWG

[KGB]

So why is Dexcool so bad in Harleys but OK in cages?  Have it in my 2006 Buick Rainier and changed it out at 100k just because.  Never ever had any problems.  So what's up with it in Harleys?

I used to see a lot of issues with plugging up radiators and heater cores along with a lot of intake manifold gaskets leaking (suspect the Dexcool)