Tried seemingly everything to increase MPG -- wondering if I need a new battery

While I haven’t collected a lot of “data” (a nod to bisco ), I have noticed a commonality to “I’m getting poor gas mileage” posts: a lot of those who have this complaint use the Prius as a camper. Wonder if that might be part of the problem? Just an observation.

 

Can’t imagine mpgs going up when burning gasoline with car in park.

 

[QUOTE


I'm not such as a moron that I'd include camping in my averages.

I'll be back after looking into the aforementioned stuff. Thanks again for the responses.[/QUOTE]

No one is calling you a moron, but you may be missing the point. Your Prius was designed for a specific purpose. Is it, even remotely, possible that using it for purposes that exceed that design, just might, maybe, be a cause of your problem? What happens to the vehicle on the weekend, actually can have an affect during the week (kind of like life in general).

 

The three things I did that improved my fuel economy were new wheel bearings @223K, ATF fluid change and a new Project Lithium Battery pack. I would recommend trying the first two before replacing the battery.