Trucking & LogisticsVehicle Mechanical Issues

Unexplained high DEF consumption and potential fuel efficiency loss in a 2024 Cascadia, suspected 20-gallon DEF tank only half-full after 596 miles, replacing CAC previously caused similar issue.

0
Opp. Score
44
Reports
1
Severity
3Medium
Trend
0%
stable
First Seen
May 20, 2026

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