2020 Chevrolet Impala equipped with 3.6L V6 Gas DOHC, 3.6L V6 Flex DOHC
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TIER 3 FEDERAL EMISSION SYSTEM(NTB),ULEV70 CALIFORNIA EMISSIONS(NUB),SULEV30 CALIFORNIA EMISSIONS(NUG)
2020 Chevrolet Impala equipped with 3.6L V6 Gas DOHC, 3.6L V6 Flex DOHC
TIER 3 FEDERAL EMISSION SYSTEM(NTB),ULEV70 CALIFORNIA EMISSIONS(NUB),SULEV30 CALIFORNIA EMISSIONS(NUG)