05-31-2025, 03:09 AM
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#1 (permalink)
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Not Doug
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Can An Old Car Achieve Over 800 Miles On One Tank?
This guy got 61.8MPG (US) in a Skoda Octavia:
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05-31-2025, 02:56 PM
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#2 (permalink)
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aero guerrilla
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I once did 1675km on a single tank, then 1718km. Quite a few 1500+ tanks with the previous car.
It is doable while hypermiling a turbodiesel. The challenge is doing it consistantly.
Winters don't help, neither do agressively impatient drivers.
Cars from the 1990-2000s, which already had the benefits for good aero, but not yet hindered by electronics overload, regularly burning out their DPF, etc.
Newer cars may boast low Cd, but they counter it with higher frontal area (more SUVs and crossovers than sedans or station wagons) and larger mass.
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05-31-2025, 03:49 PM
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#3 (permalink)
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High Altitude Hybrid
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With a 5-gallon jug of diesel in the trunk, I could have gotten 900 miles in my 1985 VW diesel on the highway, and that without hypermiling much, as I could get 60mpg in the thing.
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05-31-2025, 04:17 PM
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Master EcoModder
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A programmwer would say "For certain values of 'tank'".
Would this count?
Or this:
10+25+5+5=45 gallons. 40MPG x 45gallons =1800 theoretical miles. The longest stretch I did in the Superbeetle with refills was 1500 miles.
So I think it could be done. ...with a relief driver riding shotgun.
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06-01-2025, 12:20 AM
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#5 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by Piwoslaw
Cars from the 1990-2000s, which already had the benefits for good aero, but not yet hindered by electronics overload, regularly burning out their DPF, etc.
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Not only some older cars were less overburdened with all those electronics and other bells and whistles, often their electric diagrams are simpler and easier to do some shade-tree mechanic jobs. From 2001 on, electronics started to become much more complex, even on small econoboxes.
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Newer cars may boast low Cd, but they counter it with higher frontal area (more SUVs and crossovers than sedans or station wagons) and larger mass.
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One thing I noticed is how newer cars are also much wider, even the ones which are considered compact now. Just look at an Opel Corsa for instance, the 2nd generation (which is the one I became more familiar with) is much more compact than any of its replacements.
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