RV Turbochargers and RV Exhausts

Hi, Steve–

Sometimes, the cost of modifications for increasing fuel mileage can far outweigh the expected dollar savings in fuel costs.

In other words, you may be luckier than you think to be getting 8 mpg. We had a diesel pusher that got less than that on a good day (with a tailwind) : )

Seriously, there are a few simple things to look at before you undergo expensive modifications.

First, if you have a trusted mechanic, consider a tuneup. Also, check and replace the fuel filter, air filter, & oil filter. Look into the possibility of changing from conventional oil to a synthetic (see your owners manual). As obvious logic, a better running engine is more efficient and that may translate to better mpg (but it might not). You can also try an ethanol additive if ethanol is added to your fuel (i.e. Texas in the summertime)–this MAY help improve ethanol-”improved” lagging fuel performance in the summer. Next, we would consider an upgraded exhaust system (again, an efficiency improvement). You can also consider a modified “power chip” for the engine (though a 460 may not have the necessary electronic configurations for this–fuel injection, etc.–not sure–power chip company can give you guidance on compatability).

Also, standard driving practice advice: don’t gun the engine, drive like an egg’s under the accelerator, no fast starts/stops, don’t overload the RV, yadda, yadda, yadda.

Another tip: if you’re planning to stay in campgrounds with hookups every night, don’t overfill your freshwater tanks for travel days & be sure to dump graywater & blackwater before setting out in the morning–significant weight reductions here can improve fuel mileage. Also make sure tires are properly inflated–they’re a silent thief of mpg efficiency seldom addressed. Turbochargers do increase fuel mileage performance, particularly for diesel engines–but check with your engine manufacturer; this isn’t a do-it-yourself-project.

Hope this helps; good luck & happy travels!

Paul & Kerri Elders
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