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Old 09-03-2013, 07:02 AM   #1
Senior Member
Fleetwood Owners Club
Join Date: Nov 2011
Posts: 157
Genny and roof air vs dash, 5Star Tune, etc

Just finished an excursion from the Florida panhandle to Milwaukee, Wi and back and thought I would share some info that relates to topics often discussed.

I have a 2008 Fleetwood Terra 33L on the F53 chassis. I've done the 5Star tune. We made this trip with three Harley-Davidson touring bikes on a trailer behind the rig.

Through the mountains of North Alabama, Tennessee and Kentucky, the 5Star tune was worth every penny I paid. I set the cruise control to 66 mph. On flat ground, this typically results in 2600 - 2800 rpm. On very steep grades the rig would downshift itself and the rpm would go to about 4200 to hold the set speed. On these occasions, I'd release the cruise and feather the gas to hold rpm at about 3600. The speed would drop some, but rarely did it drop below 60 mph. I was happy to see the mileage results, shown in the next paragraph, given the mountains and the load being pulled. I was most pleased with the driveability improvement, and is for me what makes the expense worth it.

Going to Milwaukee, we drove all night, so I ran the dash air only as the temp in the coach was tolerable. I averaged 6.72 mpg going. On the return trip, we started out late morning, so I started the genny and fired up the roof air to keep the coach space comfortable. With genny running and no dash a/c, I averaged 6.28 mpg. I'll add that the coach was likely lighter on the return trip as most of the refer contents had been consumed and the three large coolers that went up full of ice and cold beverages came back nearly empty.

The questions about the value of the 5Star tune and the questions about the roof air versus dash air appear on this forum regularly, so I thought I would share my results. I'm sure others will share different results. I'm simply putting it out there for those that are interested.
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dash, roof

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