2009 Civic Hybrid-another low MPG - tires AC or something else?
I recently purchased a used 2009 Civic Hybrid with 22k miles on it. Since then, I've averaged about 32 mpg (according to the display gauge). My hand calculated shows that to be accurate within about 1-2 mpg.
I use odometer setting B to gauge every tank of gas. When I fill up, I tend to read around 40 mpg around the first few miles. Then it drops to about 32 mpg with a couple bars left on the gas tank. I then refill the gas and start over. My overall mpg reads about 34 read not (on odometer setting A which has logged about 1200 miles since I purchased it). I'm trying to figure out why I cannot stay at least near 40 mpg consistently.
I've noticed a couple issues that are worth mentioning.
I only get to about 40 mph when I started resetting my tires to 40 psi (done at gas fill up). I think there is a slow leak in one tire which seems to drop to 30 psi before the next tank of gas. Would decreasing psi in one tire (or unevenness in psi) cause this low of a mpg? I took it to Honda and they told me that all of my gas sensors on the tires have a slow leak and should be replaced. I'm thinking about doing it but they are going to charge $450. Has anyone had a problem with the sensors leaking?
It has been 90-105 here the last few weeks so I have been running the AC constantly on high. It doesn't cool well in city traffic which I see may have been a known problem for the cars. Could the AC be responsible for a 10 mpg drop?
Thanks for any comments. I'm new to hybrids and have read tutorials about hypermiling but I think I have more basic problems than need to be solved.
Since I last filled the tank
Since I last filled the tank and tires (40 psi), I have tried to keep my rpm to under about 2500 or approaching 3000 at most when needing to speed up for on ramps or something else. Since then, I've pushed my mpg to about 40 now. It was surprising that I would really have to work at it just to achieve 40 mpg to me.
Also I still have to replace the tire pressure sensors they apparently were causing a leak. Has anyone else seen that happening?
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Wow so it sounds
Wow so it sounds like everything kind of worked out for you! So with the new battery are you able to stay in the 40's without much work?
It sounds like I never had the battery problems that you did. I have been learning how to drive the 09' HCH better am now able to get about 40 mpg on most tanks of gas. To do so still requires what I think is a large amount of effort on my part. I think the average person just choosing to drive my car would cause the mpg to plummet to around 30.
I was just wondering what the specified 40city/45 highway actually means. Is that some type of average Honda comes up with or is that number based at least someone that has knowledge of basic hypermiling?