Results of the largest and most comprehensive MMT (an octane-boosting additive) test program ever conducted shows seven of eight low-emissions passenger cars tested failed emissions certification standards for hydrocarbons when driven over time on gasoline containing MMT. So says a consortium of auto maker associations that pooled their efforts for the carefully structured testing. MMT has been successfully kept out of most U.S. gasoline, but its continued use in Canada was effectively ...
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