I have a couple more questions and hopefully Duke can answer them all!!

1) Is there any relationship between these "organic" components and the "non-toxic" types advertised (Sierra for example)? I am guessing that even the MB or G-05 is still toxic. True? What makes the Sierra non-toxic?

2) Many shops now "recycle" or "rejuvinate" coolant. How do they do this considering the variety of coolants that they are draining out of cars. What do they end up with?

Thanks,

Mike

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra