Alternative thoughts on HPL **UPDATED**

Feb 25, 2014
Kansas (316)
I use an ounce per qt in the crank case of this for about 100 miles prior to an oil change when I want a quick clean up.

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I toss around four ounces in the crankcase and the rest in the tank the night before with a gallon of premium non ethanol. Works well on 1/3 tank. Drive it on highway and shutoff hot. Drive to dealership, get there early, pop the hood and toss it in and idle for five to ten minutes.