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Old 10-28-2020, 11:56 AM   #208 (permalink)
sgtlethargic
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Quote:
Originally Posted by oil pan 4 View Post
DEF is just about pointless on long haul trucks.
Why? Cleaner air / less pollution is a good thing everywhere.

Quote:
Only about 1% if even that much area of the US has NOx pollution problems.
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