Fuel Range/DTE 10-mile increments

[vindiesel]

Originally Posted by OkieSnuffBox

I need to fill up now. I'll be curious to see what the mileage looked like. The trip to Tulsa was 240 miles roundtrip of which about 200 was the turnpike between the two where people drive FAST.

I was doing 85-95 on the way up most of the time a few times above 100. On the way back I was able to just set the cruise at 85. IIRC I have two bars and only about 270 miles on the trip meter.

I’m curious to know your mpg on that trip.

I did a 200 mile romp up in the mountains allot of 2-3rd gear most of the time tight technical stuff. Then the rest of the tank 75-80mph on highway. Still netted a 25.5mpg I was shocked and impressed. Hand calculated of course.

[H380]

Flat at basically at sea level. 60mph will get 30mpg. 70mph will be 25-26mpg. 80mph will be 22-23. 22BRZ 6sp Limited. Calculated BTW. It drops fast with higher RPM.

[vindiesel]

Originally Posted by H380

Flat at basically at sea level. 60mph will get 30mpg. 70mph will be 25-26mpg. 80mph will be 22-23. 22BRZ 6sp Limited. Calculated BTW. It drops fast with higher RPM.

That seems a little on the low side. I haven’t taken a long distance trip yet my daily drive to work going 75-80mph 90% of it hwy. I’m at 26mpg and that’s not feather footing it nor fast and furious down shifts. The first 2000 miles on the car off it was a tad less. I’m 350ft above sea level.

[OkieSnuffBox]

Originally Posted by vindiesel

I’m curious to know your mpg on that trip.

I did a 200 mile romp up in the mountains allot of 2-3rd gear most of the time tight technical stuff. Then the rest of the tank 75-80mph on highway. Still netted a 25.5mpg I was shocked and impressed. Hand calculated of course.

Frankly, I'm shocked. And my car wears 245/35/18 Conti ECS on 18x9.5 wheels (and from published weights, this setup is still lighter than stock), of course it's lowered which does help aero a bit.

285 miles + 10.4 gallons = 27.4 mpg.

The only thing I can think of is that turning higher RPMs puts the motor in a happy spot in 6th gear so even though you're turning more RPMs the engine isn't working as hard to maintain speed.


EDIT: And now that I think about it, at those speeds, there may also be a marginal draft effect from the cars/semi's as well.

[AK2112]

Originally Posted by ZDan

Of course it's not perfectly accurate, but when you look down and see "10 miles" in the *old* car, OK, it's reporting 10, not 9, and not 11, so I know I have 10 miles + whatever safe "reserve", +/- "error". In practice, safely you *know* you have at least 25 miles to get fuel with margin for error.

New system, look down and see "10 miles", it's not telling you nearly as much info at a time when it would be *very useful* to know whether it really means 19 miles, or 5 miles (+ safe "reserve" +/- error).

Accuracy is one thing, precision is another. It has taken away precision by a factor of 10x or more, for *no reason*.

10 mile increments makes zero sense, taking a formerly somewhat useful feature and *making* it useless. Combined with the new far worse fuel gauge, it's mildly infuriating. The old gauge had much much finer resolution, and continued to decrement past "E", new one with 12 massive blocks, each representing upwards of 30 miles. Combined, the new setup gives you *way* less info about how much fuel and range you have left. Stupid, senseless changes.

If you see 10 miles remaining, get some fuckin gas

[ZDan]

Originally Posted by AK2112

If you see 10 miles remaining, get some fuckin gas

No…

[ZDan]

In the '17 PP, I see "10 miles" and at a glance I know I can go 10 miles plus safely another 15 with margin (have gone +20 but pushing it at that point!).

With the NEW car, I see "10 miles" and it could mean that I have 19 miles plus reserve, or it could mean only 10 miles plus reserve.

That's a HUGE difference when trying to strategize where to stop for gas!

Also, where the old car would tick down from 10 miles to 9 (then on down to 1), the new one just goes from "10" to "--", no more info!

Added to that we have the change from super-hi-res fuel gauge to super-lo-res.

Maddening!

In practice, it means that the formerly useful Range/DTE number is almost no use at all, and I have to keep glancing down to catch when when the fuel gauge goes from 1 chunktastic 8-bit block to zero. Then I can set a trip meter to count up.

Traveling from Pawtucket RI to Laurel MS over the past few days, on the last tankful I went +24 miles past the point where the Range/DTE clicked from "10 miles" to "--". This was +15 miles after the last fuel gauge block went off. Then filled filled the tank with 12.06 gallons. 13-gallon tank, so theoretically there was still another ~28 or so miles in there! No intentions of going that far, although I did have a 12.9 gallon fill in the old car once or twice...

[vindiesel]

Z Dan based off your fuel to empty issue and volume screen popping up issue thread… what have you owned before that lead you to be this sensitive? I’m curious.

[ZDan]

Originally Posted by vindiesel

Z Dan based off your fuel to empty issue and volume screen popping up issue thread… what have you owned before that lead you to be this sensitive? I’m curious.

Why would you think it has anything to do with cars I've owned before? They're just stupid little things that make no sense in their own right. Why have a Range meter telling you how far you can go, and have it read in 10-mile increments, and constantly display a zero-info "0" as the last digit? Why dedicate so much space to a fuel gauge, and then make it read in increments of 1/12 of a tank when the pixels are there to give much much finer resolution? Why have a graphic pop up and block out the left-side info screen when I *know* I'm adjusting the volume and I'm also hearing the change. Who needs that visual feedback?

Just dumb little stuff...

Posting here because this is presumably the forum for it. Also on the off-chance there's a way to *fix* these things... Also, it is fun to complain.