Never fail an emission test.
Excessive Carbon Monoxide (CO) can cause your car to fail an emission test.State inspections confirm that vehicles using Ethos FR have zero Carbon Monoxide.
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Chevy Silverado, 1995, full-size pickup, 195,717 miles (Dan R., Austin, TX) | 
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Ford Bronco, 1990. 81,559 miles (Johnny B., Austin, TX) | |
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Honda, CRV, 1999. 107,137 miles (Peter C., Austin, TX) | |
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Ford Durango, 1999. (Chuck T., Austin, TX )
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Mercedes, 1995 (Hana B., Austin, TX ) | |
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Ford Probe, 1993. 110,020 miles. (Yifat. C, Austin, TX) | |
