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Engine updates maybe need
Just had my 21 in for the DEF sensor replacement this week where Cummins found two major updates needed, both fuel rail related. The tech said they could improve mileage, but didn't know if they were mileage or emissions related. My coach is a 21 delivered in Aug 20. Chassis is a 11/19 with a 6/18 engine.
On my 14, first trip, I had no power, terrible fuel mileage, as low as 5.6 mpg. Took it to Cummins Ocala where they found 14 updates needed. Engine ran great after leaving and the mileage went to the normal 7.3
Updates are free during the 5 years while under warranty. Well worth having done if the engine has never been checked. This is my second new coach where both have had needed updates.
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Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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