554 mile xB1 tank at 52.53 mpg! - Page 84 - Scion xB Forum
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post #1661 of 1794 Old 11-23-2016, 10:39 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

My last tank, at 36 mpg, seems to have been an outlier.

I gassed up yesterday: 38.2 mpg. It was a better tank because I rarely used AC. With my previous tanks, I was still cycling the AC on and off during the day. Now the days are cold enough to where running the vent is cool enough. My car also slept in the garage every night. Darrell's comments were a reminder for me to focus on the basics and not to blame the winter weather.

My current tank seems to be on track for 39-40 mpg. I drove around 220 miles yesterday and the car really does seem to reward you for extended trips on a warm engine- something yesthatsteve also preached. Yes, the xB is my workhorse for deliveries.

Thanks again to our former xB owners for their helpful tips thoughout these 83 pages.


PS: Darrell, have you filled up your tank again? I'm wondering if you'll break 65 mpg on your Prius one day.
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post #1662 of 1794 Old 11-24-2016, 05:45 PM Thread Starter
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Re: 554 mile xB1 tank at 52.53 mpg!

melonxb,

Great to hear you upped your fuel economy results this last tank. It's only a matter of time until you join the 40 mpg club.

Yes, I filled my tank yesterday - 397.3 miles on 6.916 gal = 57.45 mpg. It's following a dropping trend for the new car, but I've been putting it under some severe tests. Hal of the current tank was on severe twisty mountain roads of CA Hwy 128 and Mountain View Road, both worse than CA Hwy 1, the infamous Pacific Coast Highway, which was also part of that drive. We did it loaded with three people, our luggage, and food for 3 nights. I also included all of the family's errands and grocery shopping.

All-in-all, I'm satisfied, and still averaging >59 mpg for the Prius since I bought it. I'm sure I can get a 65 mpg tank on the Prius easily, if I take my time and enjoy the scenery.

Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
49.2 mpg avg over 58,800 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Boycotting Exxon/Mobil since 1989, BP/ARCO/Amoco since 2010

See my cross-country trip report here, & my 1000 km tank here.
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post #1663 of 1794 Old 11-24-2016, 07:58 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

Darrell, what hypermiling techniques are you still using? I'm assuming that some things might automatically be done with the Prius. Do you still:

1. Turn off engine manually at stop lights?

2. Coast in N to stop signs from 4 blocks away?

3. Pulse and Glide, or do you now keep a steady speed in city driving?

4. Do you still take the service roads or are you driving more on the highway?

5. If you're on the highway, do you still set the cruise control to 60 mph?

6. Do any engine off coasting?
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post #1664 of 1794 Old 11-25-2016, 11:12 PM Thread Starter
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Re: 554 mile xB1 tank at 52.53 mpg!

Darrell, what hypermiling techniques are you still using? I'm assuming that some things might automatically be done with the Prius. Do you still:

1. Turn off engine manually at stop lights? No. Prius automatically does this

2. Coast in N to stop signs from 4 blocks away? No. Prius seems to prefer smooth steady speed over massive pulse and glide cycles.

3. Pulse and Glide, or do you now keep a steady speed in city driving? As mentioned above, Prius does better on fuel economy when I maintain smooth steady speeds.

4. Do you still take the service roads or are you driving more on the highway? I still prefer the slower, safer frontage roads over the high speed conga line dancing.

5. If you're on the highway, do you still set the cruise control to 60 mph? When I'm on the highway, I try to limit my actual top speeds between 57-60 mph.

6. Do any engine off coasting? No. Don't even think of EOC with an AT transmission.

Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
49.2 mpg avg over 58,800 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Boycotting Exxon/Mobil since 1989, BP/ARCO/Amoco since 2010

See my cross-country trip report here, & my 1000 km tank here.
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post #1665 of 1794 Old 11-26-2016, 07:07 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

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Darrell, what hypermiling techniques are you still using?

....
Wow, feels like an end to an era. Basically, you're driving like the average Joe with an emphasis on limiting top end speed. And still getting over 60 mpg. No wonder that Toyota is so popular.

Two more....do you still accelerate briskly at around 90% load, or is there a different technique with the AT? And do you still use the UG, or is most of the info in the car's computer?

I have a hunch when your daughter comes to visit, you'll be taking the Mean Green Machine out for a hypermiling run.

---------- Post added 11-26-2016 at 05:23 PM ----------

Filled up today. Still a bridesmaid for the 40+ Club, but a happy one.

396.5 miles
10.0 gallons

39.65 mpg.

My highway driving has been averaging around 60-65 (indicated on speedometer), which probably is giving me ~38 mpg.

That means my city driving has really improved, thanks to the tips in this thread. I've been coasting a lot, especially when there are few cars on the road. I'm actually coasting close to 50% of my morning drives, which must surely increase the mpgs.
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post #1666 of 1794 Old 11-27-2016, 05:56 PM Thread Starter
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Re: 554 mile xB1 tank at 52.53 mpg!

Sad, but true. I knew computers could do what I do, and do it better. The Prius proves it. Somehow it can roll up 60 mpg averages at slow highway speeds. I think it does mini P&Gs in its regular driving

Once again, you're right at the cusp. Can't get much closer than 39.65 mpg, so you'll hit the jackpot sooner or later.

I remember rolling downhill from Bernalillo to Albuquerque in a rental AT Hyundai Accent or Kia Rio. It was a Summer Sunday afternoon, and the highway was packed, and everyone was rolling slowly. I P&Ged for about 30 miles, and brought my tank mpg to the cusp of 50 mpg.

Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
49.2 mpg avg over 58,800 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Boycotting Exxon/Mobil since 1989, BP/ARCO/Amoco since 2010

See my cross-country trip report here, & my 1000 km tank here.
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post #1667 of 1794 Old 12-15-2016, 12:30 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

417.5 miles
11.13 gallons

37.5 mpg

The above was a fill up with my regular Arco station.

Strange thing happened with my previous tank before that. I filled up at Costco (I fill up at Arco 90% and Costco 10%) and my mpg was noticeably worse. At the halfway mark, I was around 200 to 210 miles, which would have put on track for ~33 mpg. I had very good driving conditions which should have shown mpg in the 39 mpg range. At that point, someone borrowed my toaster for a couple of days and put some gas in it without logging it, so I don't know what the exact mpg was.

Same thing happened last winter. I filled up at Costco and I had much worse mpg. They don't advertise exactly which gas they use, but I've had bad experience with their winter blend. Anyone else experience a difference between brands during the winter months?
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post #1668 of 1794 Old 12-15-2016, 01:13 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

Never got gas at Costco yet but that is a good thing to know !! Got my Snow tires on Tuesday as that's the ONLY day its moved for the last 12 days !!! Damn to cold to move it out !!
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post #1669 of 1794 Old 12-23-2016, 01:05 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

375 miles
9.68 gallons

38.7 mpg

I've been following the advice here and don't warm up the car at all. Just start the engine and drive. In additino, combining smaller trips into a longer one seems to be the best winter advice that I've read in this thread.
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post #1670 of 1794 Old 12-24-2016, 12:53 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

Not bad for winter blend as my car has not really moved for the whole month !!!
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post #1671 of 1794 Old 12-28-2016, 10:02 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

366 miles
10.3 gallons

35.5 mpg.


Over the past week, weather has been below freezing in the mornings and late evenings. I think that had a negative impact. Plus, over the Christmas week, I wasn't working as much and taking multiple short trips. The experts in the thread have said that's a killer and it appears to be true.

Warmer weather is on it's way. Plus, a local highway has started construction and has implemented a 55 mph speed limit, which should improve my next tank's fuel economy, ha ha.
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post #1672 of 1794 Old 01-04-2017, 08:40 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

351 miles
9.42 gallons

37.3 mpg.

Most of the trips were shortened over the New Year's holiday. So while there was a bump in mpg, there's still room for improvement.
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post #1673 of 1794 Old 01-05-2017, 05:39 AM
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Re: 554 mile xB1 tank at 52.53 mpg!

Very nice !! I have not driven over 50 miles in the past 6m weeks but the box is full of gas !!!!!
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post #1674 of 1794 Old 01-08-2017, 09:01 AM Thread Starter
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Re: 554 mile xB1 tank at 52.53 mpg!

Hi guys, it's been a while. FWIW, I started hypermiling to protest Exxon-Mobil, and have been boycotting their products since 1989. I've also boycotted BP/ARCO since 2010.

When I lived in AK, there was only one refinery in the state, so it didn't matter which brand you bought - it all came from the Tesoro refinery. Chevron, Shell, etc would buy a base blend and add their Techtron, etc. additives to it. You could follow a tanker as sit drove from the Tesoro refinery and stop to deliver fuel to Shell, then Chevron, etc. I doubt you'll find a consistent difference in Costco mpg v. ARCO mpg

Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
49.2 mpg avg over 58,800 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Boycotting Exxon/Mobil since 1989, BP/ARCO/Amoco since 2010

See my cross-country trip report here, & my 1000 km tank here.
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Re: 554 mile xB1 tank at 52.53 mpg!

Damn, Darrell did make it for another year and ts is... AWESOME !!!!
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post #1676 of 1794 Old 01-08-2017, 12:54 PM Thread Starter
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Re: 554 mile xB1 tank at 52.53 mpg!

Hey Jeff,

I drove ~150 miles Friday. Mostly highway, but some dirt roads and country roads. Averaged >64 mpg on the Prius' fuel indicator. I lose about 5 mpg during the translation to reality, so 64 indicated is really about 58-59 mpg.

Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
49.2 mpg avg over 58,800 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Boycotting Exxon/Mobil since 1989, BP/ARCO/Amoco since 2010

See my cross-country trip report here, & my 1000 km tank here.
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post #1677 of 1794 Old 01-08-2017, 01:56 PM
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Re: 554 mile xB1 tank at 52.53 mpg!

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Hey Jeff,

I drove ~150 miles Friday. Mostly highway, but some dirt roads and country roads. Averaged >64 mpg on the Prius' fuel indicator. I lose about 5 mpg during the translation to reality, so 64 indicated is really about 58-59 mpg.
Hey, always nice to hear from you.

In the short period you've had your new car, have you figured out the speed charts in relation to mpg? Is it similar to the toaster, or do the aerodynamics allow you to drive a lot faster at very efficient mpg? I have a hunch you'll see even higher numbers in the summer.

For me, besides the warm up period for both oil and coolant, my achilles heel seems to be my highway mph. I've been driving a lot at ~63 mph on the speedometer (60 mph real life) and that drops my mpg to ~35-37 mpg (as per AJCadoo). And 35-37 mpg is close to what I've been averaging.
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Re: 554 mile xB1 tank at 52.53 mpg!

Awesome MPG Darrell !! Just wish we had warmer temps but it is winter so will have to wait for awhile !!!
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Re: 554 mile xB1 tank at 52.53 mpg!

Last two tanks were 36.8 and 33.9 mpg.

Last 4 tanks averaged 35.9 mpg. Much better than last winter for me. But around a 10% drop from the summer, even with the AC on the entire time.
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Re: 554 mile xB1 tank at 52.53 mpg!

Quote:
Originally Posted by BestmpgxB View Post
I know when most of you think performance, you're thinking about going fast. But let's face it, our 108 hp, FWD, aerodynamic barn doors are about the poorest racers ever made.

99 wheel horsepower coupled to FWD means anyone with 90 hp and RWD will beat you. Anyone with 100 hp and FWD will beat you. Anyone with AWD will beat you. Darn near anybody driving anything will beat you. The only races you'll win are when the other guy is laughing so hard, you get a hole shot on him.

Bolt on a thousand bucks of headers, intake, and exhaust, and 99% of today's bone stock cars will still beat you, including every family sedan, taxicab, minivan, and SUV out there.

So let's talk about where a 1.5 liter engine shines - fuel economy. When our engines are warmed up, we burn .11-.14 gallons per hour idling - less than half of what a typical family car will drink. We can cruise all day at 35 mph and average nearly 55 mpg at that speed.

I've made a game of hypermiling my xB since I bought it over 17,000 miles and a year and a half ago. In that time, I've averaged 46.7 mpg under all driving conditions, including a 7200 mile cross-country round-trip to Miami in the Summer, with AC running and four people inside.

My last tank was my record distance tank, 554 miles on 10.547 gallons, for a 52.53 mpg average. How do I do it? Not with performance mods. My only mod there is this WAI, which didn't improve my fuel economy one iota.

I drive slow, and I drive smart. Stoplight drag racers typically get single digit fuel economy from light to light, and lower that even more idling. The average driver has his foot on the gas pedal half a block from the next red light. I've been gliding to it for three or four blocks. I let the jackrabbits trip the sensors, and try to glide through the lights without touching gas or brake pedals.

Our boxes are aerodynamic barn doors. Push them over 55 mph, and fuel economy plummets. At 70 mph, I get 32 mpg. At 55, I get about 45 mpg. At 31 mph, I get 55 mpg. So I go slow on highways, and prefer to take slower frontage roads. 80% of my mpg gains come from going slow. Questions?
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