Re: New Mexico, 7500' plus elevations
You have a 2008 RS. Does it have the 5 cylinder diesel engine?
When we were looking for an RV, we looked at the Roadtreks built on the Sprinter body. They had the 5 cylinder Mercedes diesel. With the weight of the rig, loaded and ready to travel, there was almost no towing capacity left. It was maxed out. I don't know if the max GVWR was based on engine torque, brake size, or frame strength.
The GVWR went up, when they changed to a 6 cylinder diesel.
If you have the 5 cylinder engine, you should still be able to travel at the speed limit, without much trouble. Even at higher altitudes, you should not have any problems. But, if there is anything wrong, you will probably notice a huge performance difference; because the rig is close to the weight and performance limits.
I would start working through the fuel system: filters, pumps, injectors, fuel quality, etc.
2009 Roadtrek 190V, 5" lift - Build Thread
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