On my 101st tank: 63.9 MFD and 60.5 Calculated over 561.8 miles. I credit the mild weather, worn out tires pumped to 44 PSI, and (yes) the EoE Recall update. Before you laugh I have a Five and the handicap of the 17" wheels.
60 mpg equates to 3.9 liters per 100 km. I've got the 215/45R17 also. I could touch 3.9 (displayed), but no way I could sustain it for a tankful, lol. Congrats!
Johnny Zero, what (worn) tires have you got on there? Was it mostly just you in the car? I'm feeling inadequate, lol. FYI, we've got Michelin Pilot HX MXM4 215/45R17. Our current tank has seen a fair number of good runs. Typically 2 in the car, sometimes 3. A few short grocery runs. I'm a "sloppy hypermiler" would be a good description. I try, but not so it shows. Keep the speed down and good space in front, anticipate, coast to stops. Have a ScanGauge, plus always cognisant of the Hybrid System Indicator display, working it. Plus we're using a block heater pretty religiously for first start up of the day. At around 250 kms on current tank, it's stubbornly displaying 4.2 liters per 100 km. Which likely translates to calculated 4.5. Which converts to 52 mpg US. Our weather's gradually going downhill, that's a factor.
The tires are OEM Toyo Proxes A20 measured at 4/32nds. I have been told that is the lowest rolling resistance tire in the 17" size. Yes most of the time I am flying solo. For this record tank, AC was off most of time since the outside temp was in the 70 to 80 *F range. Did not get rained on. I think we are still running summer blend gas. Well a lot of things were lined up.
^ That's optimum. Not too hilly? Using cruise or not? (We'll get to the bottom of this high mpg problem.)
Mostly rolling hills, which makes for natural pulse and glide. I can maintain the speed limit with the HSI at the top end of ECO, going up the hill, and glide down the hill in EV with no power transaction, or some regen, depends on the speed requirement. What I have found after the EoE update, is that the battery bars last longer, and recover quicker on regen, which is very conducive for good mileage for this kind of driving. I have the ATP. If and when I am on the highway (there was maybe 10 miles worth of it, in this tank), I find the best looking 18 wheeler with intact mud flaps, then tuck behind it with my radar cruise set to speed limit + 5, and minimal following distance (I think it works out to 100 feet), and draft behind the truck. I think I am at the end of life for the tires. I plan on replacing them with the Bridgestone Ecopia EP422. According to F8L's tests, they seem to be the most efficient tires in the 17" size, if you do not count the OEM Toyos. The Toyo's can be had from Tire Rack for $215 apiece, the Ecopia $139 at Discount Tire. I don't think the extra efficiency is worth the extra cost. But then, my MPG game might be over soon.
Congrats! I also have a 5 with 17" wheels so I understand how hard that 60 mpg is. The best I ever have done is 60.3 MFD and 56.5 calculated.
I have high hopes for the current tank: showing 68 MPG at 250 miles. Maybe I can crack 65 MPG calculated?
I had thought I cracked the 65 MPG mark but 10.17 gallon went in and ended up with 64.16 MPG Calculated. That's my best tank and most miles per tank thus far.
Those are stunning numbers with the 17" handicap! With my new 2015 Persona My last 3 tanks I could only manage 45 mpg, 42.5 mpg, 39.3 mpg calculated, and that is with using CC at 55-60 when possible and gliding as much as I can and limiting heater use. Granted, It has been very cold this last month, quite a bit of rain, winter blend gas, car is new and prob not broken in, in essence everything working against me. I should prob attempt grill blocking next and see if that helps.
