Engine cool down

[davidbrady]

Hi William,

I do the same as Hish, but I do consider the long coast off the exit ramp and the puttering around the CG, rest area, or fuel stop to be part of the cool down.

My manual says 2 minutes should be sufficient. Manuals can be found over here:

https://techpub.prevostcar.com/en/manual...language]=

"Allow engine to idle for at least two minutes before shutting engine OFF. This insures that the turbine speed drops and allows time for the engine exhaust gas temperature to drop to about 300 F (150 C);"

I always learn something new as a re-read the assorted Prevost publications for my coach. For instance, the same manual for my coach says this:

"Caution: Do not shut OFF engine when running above normal idle."

and this:

"Caution: Do not press accelerator pedal before starting. This could result in an electronic control unit fault and degrade the fuel system control."

I think the only gauge that's missing in my H3 as compared to my 2002 Wanderlodge LXi is the EGT. My H3's message display center will give me battery voltage, transmission temperature, and oil temperature. I've adopted a different mindset since owning my Prevost. I trust the Prevost more than I trusted my Wanderlodge. I'm relying more on the DDEC IV and other Prevost systems to do the right thing and to tell me if something's wrong versus my old ways of adding layers of gauges via Silverleaf and such. Of course, I still scan my gauges but I find we can easily be distracted from driving if we present too much info to the driver. Just my philosophy.

Tell us more about your Prevost experience. How long have you had it?