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Re: I'm a fuel economy junkie [Re: TiredTrucker] #5108141 05/17/19 11:40 PM
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Skippy722 Online Content
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Originally Posted by TiredTrucker
The county has been playing their incompetent games with road maintenance to the point where if one doesn't have a serious 4x4 vehicle, they are not going to make it down the road.


Can confirm, I turned around in the gravel driveway of the local utility companies little switching yard entrance today... my tires just wanted to spin.


2016 Chrysler 300S v6
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: I'm a fuel economy junkie [Re: fdcg27] #5108144 05/17/19 11:49 PM
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SonofJoe Offline
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I'm still waiting for someone to step forward & properly challenge me & my little Suzuki Celerio.

I once, on a long motorway run, got 546 miles on 32 litres (8.45 US gallons) of standard UK unleaded. Compared to any hybrid, the Celerio is laughably low-tech (& dirt cheap to buy) but it does demonstrate just what you can do with low weight, a 1.0 L 3 pot NA engine, a relatively high compression ratio, good gearing, 0W20 & a light left foot.

Re: I'm a fuel economy junkie [Re: SonofJoe] #5108149 05/18/19 12:24 AM
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CR94 Offline
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Originally Posted by SonofJoe
I'm still waiting for someone to step forward & properly challenge me & my little Suzuki Celerio.

I once, on a long motorway run, got 546 miles on 32 litres (8.45 US gallons) of standard UK unleaded. ...
That's pretty good, but then it's a significantly smaller, lighter car than most hybrids sold in the US.

We used to get the tiny Geo Metro (aka Suzuki Swift) 1.0 L that could do numbers like that or better.


2011 Toyota Prius now at 102K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
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Re: I'm a fuel economy junkie [Re: fdcg27] #5108150 05/18/19 12:35 AM
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I've had fuel economy on my mind lately. Next week, I'm taking the family on a 2,000+ mile round trip to Oklahoma for a family reunion in a 2002 Tahoe 5.3L with 247k miles. If I average 18 mpg, I'll call it a victory. I'm going to try to hit 20. I've set aside $450 for gas for the trip.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: I'm a fuel economy junkie [Re: fdcg27] #5108160 05/18/19 01:04 AM
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SonofJoe Offline
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Until today, I'd never heard of the Geo Metro. However I found this article which was quite educational...

https://cars.usnews.com/cars-trucks/geo-metro

I'm lover of small, efficient cars but from what I read, even I would baulk at the Geo Metro! To get that low 1600 lb (729 kg) kerb weight, it sounds like the engineers took a hack saw to anything they deemed 'unnecessary' (including critical safety features). The resultant car must have been a complete dog to both own & drive! Also, given that GM had to downgrade the 'official' fuel economy figures to 43/52 mpg (city/highway) I suspect that many of the 75 mpg claims were fisherman's tales.

By way of contrast, the little Suzy weighs in at 840 kg, the engine develops 67 BHP (vs 55 on the Geo), has an 11:1 compression ratio (vs 9.5:1 for the Geo) & there's nothing stripped down about it. It's whisper quiet & with the robotised manual/auto box, effortless to drive.


Last edited by SonofJoe; 05/18/19 01:33 AM.
Re: I'm a fuel economy junkie [Re: fdcg27] #5108165 05/18/19 01:40 AM
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I get about 48-52mpg at 67 mph in my 326,000 mile 2000 Toyota Echo. If I go 72 mph it drops to 40mpg

Re: I'm a fuel economy junkie [Re: fdcg27] #5108183 05/18/19 04:38 AM
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Silk Offline
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I ride a 50cc scooter daily. Every few weeks I put fuel in about 5 litres.


1987 BMW R65 - Penrite VTwin 20-50
2005 Nissan Expert - 5W-30 Castrol Edge
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.
Re: I'm a fuel economy junkie [Re: Shannow] #5108218 05/18/19 06:14 AM
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Linctex Offline
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Originally Posted by Shannow

I agree, hybrid drivetrains are the ultimate in efficiency and utility.
The KONA should have 30KWh batteries, and a 20KW APU


It shouldn't take that much power for steady state, "Flat-terrain" driving.
I would think a 10KW APU should be enough to keep it at highway speed, and the battery would be used for hills.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: I'm a fuel economy junkie [Re: fdcg27] #5108223 05/18/19 06:36 AM
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Danno Offline
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SUVs and Pickups on the road the past 10 years have become very popular, in Canada those categories are 71% of the new vehicle market.
All the 3,000 lb vehicles discussed here would not fair well in a crash vs a 6,000lb SUV or pickup.
And great driving skills take you only so far, just look at the car cam videos that hit the internet everyday.


2019 Jeep Grand Cherokee Summit 5.7L Hemi
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2016 Sorento SX V6 AWD
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Re: I'm a fuel economy junkie [Re: fdcg27] #5108225 05/18/19 06:40 AM
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Dallas69 Offline
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This site is for real cars with engines.
Not for tree huggers with golf carts.


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Re: I'm a fuel economy junkie [Re: SonofJoe] #5108226 05/18/19 06:40 AM
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Linctex Offline
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Originally Posted by SonofJoe
I'm still waiting for someone to step forward & properly challenge me & my little Suzuki Celerio.
I once, on a long motorway run, got 546 miles on 32 litres (8.45 US gallons) of standard UK unleaded


Are you SURE that's right???

That 64 Mpg.

We used to have a 1983 Chevrolet "Chevette" with a 1.8 liter Isuzu IDI engine that would get 58-60 mpg when not trying - just regular driving.

If I still had that car I would take your challenge. ... with a few tweaks and tricks (including a final gear swap) I know I could beat your number!


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: I'm a fuel economy junkie [Re: fdcg27] #5108230 05/18/19 06:46 AM
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It really depends on how many miles you drive and the cost of a replacement battery after the warranty is up (assuming you will keep the car that long). In my case (I have a hybrid) I don't drive enough miles to make a battery replacement cost effective and they are estimating 4-5,000 to replace my batteries. You need around 150,000 miles for me to be cost effective on the savings of the fuel. When I purchased mine I thought gas would be $5//gal and it never happened. I ave around 44mpg city. The only manufacturer to offer a lifetime warranty on the battery to the original owner is Hyundai, all others vary and mine is 8 years. Further, if the manufacturer charges a premium for a hybrid over the gas model of the same vehicle that makes the break even point( just at time of purchase) between 2-3 years in some cases. So, again, IMO, unless you put a lot of miles on a hybrid there is no cost savings if you have to replace a battery.

Re: I'm a fuel economy junkie [Re: fdcg27] #5108231 05/18/19 06:48 AM
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If I get over 20 mpg I'm happy.


"Zed's dead baby, Zed's dead."
Re: I'm a fuel economy junkie [Re: Linctex] #5108258 05/18/19 08:00 AM
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Originally Posted by Linctex
Originally Posted by SonofJoe
I'm still waiting for someone to step forward & properly challenge me & my little Suzuki Celerio.
I once, on a long motorway run, got 546 miles on 32 litres (8.45 US gallons) of standard UK unleaded


Are you SURE that's right???

That 64 Mpg.

We used to have a 1983 Chevrolet "Chevette" with a 1.8 liter Isuzu IDI engine that would get 58-60 mpg when not trying - just regular driving.

If I still had that car I would take your challenge. ... with a few tweaks and tricks (including a final gear swap) I know I could beat your number!





I would believe him. The Celerio is a nice little car. Very popular in Asia. They are assembled in Thailand if I’m not mistaken. The engine is a 3 banger under one liter.


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Re: I'm a fuel economy junkie [Re: Linctex] #5108259 05/18/19 08:00 AM
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SonofJoe Offline
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Originally Posted by Linctex
Originally Posted by SonofJoe
I'm still waiting for someone to step forward & properly challenge me & my little Suzuki Celerio.
I once, on a long motorway run, got 546 miles on 32 litres (8.45 US gallons) of standard UK unleaded


Are you SURE that's right???

That 64 Mpg.

We used to have a 1983 Chevrolet "Chevette" with a 1.8 liter Isuzu IDI engine that would get 58-60 mpg when not trying - just regular driving.

If I still had that car I would take your challenge. ... with a few tweaks and tricks (including a final gear swap) I know I could beat your number!



I am 100%, absolutely, categorically sure! I'm a retired chemical engineer & oil man so I know how to do the maths properly. Before you ask, that figure was based on the odometer & tank fill number, not the trip computer (which currently reads 75.2 mpg as a long term average). If I knew how to upload photographs, you could see the photo of the trip computer miles I took because I knew people wouldn't believe me!

I can assure you it's no fluke either. My wife has exactly the same car as me and it too seems to run on fresh air. TBH, I get somewhat grumpy if I don't get 70 mpg (imperial) from each tankful which can happen if it's cold (ie less than 10°C) or if I do lot of pottering around town or if I have my son in the car (he insists I drive everywhere at 70 mpg).

As regards the Chevette (or 'Shove it' as it was affectionately called here) being a challenger, I would accuse it of cheating by virtue of the fact it uses diesel. Hydrocarbon energy content is weight, not volume specific so a gallon of diesel (density 0.85-ish) contains more raw energy than a gallon of gas (density 0.73-ish).

To those that say the tree-hugging Celerio isn't a 'real car', all I can say is that I hope you have the good grace to die in a 'real' forest fire, get flattened by a 'real' hurricane or get buried under 30' of 'real' snow because these are the things that 'real cars' do to the environment.

Last edited by SonofJoe; 05/18/19 08:24 AM.
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