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STEN

Preventive Maintenance Item

It is necessary to periodically unplug the connector at the low coolant probe and inspect for coolant contamination on the affected vehicles.

Get the facts!
(printable PDF)

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MYTH:
"DEF, a urea solution, will cause your vehicle to lose power."

FACT:
As long as the DEF tank is adequately filled, your vehicle will remain as powerful as ever. A low fluid warning light will alert you when it's time to refill your tank.


MYTH: "The SCR system will add a huge amount of weight to the bus."

FACT:
Even with the SCR system and 10 gallons of DEF on board, we'll weigh the same as, or less than, our competitors.


MYTH: "DEF will be very difficult to find"

FACT:
With most of the industry using SCR, DEF is as available as diesel or any other fluid your vehicle needs.


MYTH: "DEF is a toxic material that degrades in heat and cold, and the SCR system is difficult to maintain."

FACT:
Years of use in Europe prove that degradation won't be a problem with safe, non-toxic DEF. Maintenance only requires you to replace a single filter.


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