Moderator: volvite
Thanks for the reply. Where do I find out the calibrated tire size for my 2005 LE?NVSteve wrote:The problem with the Nav readings is that they are based on one tire size, and that is obviously not the same tire size you are running. To give you a better idea, the calibrated tire size for the 2007 models is 265/75/16. That means that everyone running a tire smaller than the 265/75/16 will be seeing better numbers on the Nav than what is happening in reality.
The answer to your second question is no, there is no way to recalibrate to a specific tire size. At least nobody on this forum has found a way, myself included.
If you have the original 2005 brochure, it will list all the models and tire sizes available. You might be able to find one via Google as well. If that year is similar to 2007, then the largest tire size listed would be the calibrated size. But, your best bet is to contact a few people on this forum with 2005 Pathfinders in their signatures. Ask them what size they run & if it is completely accurate with the speedo.glenski_31 wrote: Thanks for the reply. Where do I find out the calibrated tire size for my 2005 LE?
Yeah, I had that backwards when I read it again (typical disconnect between brain and fingers). I don't have Nav myself, and have never payed any attention whatsoever to any of the displays available outside the odometer, but I would say you are on the mark. My biggest beef with the "current" mpg readings is that it fluctuates so wildly depending on speed, etc. 8.7% is a pretty huge difference though. Come to think of it, the only really bizarre mpg readings (plus or minus) I have seen posted on this forum have been from members with Canadian models. One guy posted a claim of close to 30mpg, which I absolutely will never believe, while I've seen others posting real dismal numbers. Again, all Canadian models. Sorry I'm not much help, but that 8.7% is certainly an eye opener. Since you have the Nav system, do you also have another display under the speedo that will also show the odo, distance to empty, etc? Or do you have to rely purely on the Nav system?Which means that if 100 KPH for 1h the trip would say I have travelled 100km when in reality I have travelled 96.6 km so Trip is reading 3.56 less KM. Fewer KMs and the same fuel consumption will make for a Nav reading that will be 3.56% low correct?
I will have to check in the paperwork provided. I think all the original manuals are there. Perhaps there is something that indicates the largest tire size. Will do.NVSteve wrote:
If you have the original 2005 brochure, it will list all the models and tire sizes available. You might be able to find one via Google as well. If that year is similar to 2007, then the largest tire size listed would be the calibrated size. But, your best bet is to contact a few people on this forum with 2005 Pathfinders in their signatures. Ask them what size they run & if it is completely accurate with the speedo.
Again, all Canadian models. Sorry I'm not much help, but that 8.7% is certainly an eye opener. Since you have the Nav system, do you also have another display under the speedo that will also show the odo, distance to empty, etc? Or do you have to rely purely on the Nav system?
Hey NV Steve. I am looking at the Nav display and trying to compare it to actual numbers. I am not looking at the instantaneous rather the average. I should take a photo of what I am looking at. I realize these things are 'best guesses' and it also would depend on how long the average is stored. Is it the average of the last 200kms or the last 2hrs etc. I assume there is a limited number of storage points.NVSteve wrote:Okay, so after rereading everything, a question: you are looking at the Nav display which is showing current mileage/fuel consumption, correct? If so, that number can't be relied on for anything, especially if you aren't maintaining a constant speed. It's just a snapshot of that specific moment in time and the fuel consumption at that moment. I've seen mine indicate as high as 30mpg when coasting down from Tioga Pass into Yosemite.
Your 14.7l/100km works out to about 16.014mpg. My overall average for the entire 90,000+ miles I have driven mine is 16.3mpg or so. I personally wouldn't consider that bad. I typically never see anything higher than 18mpg.