What kind of fuel mileage does your 928 get?
09-07-2012, 08:52 AM
#34
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city average 17lt/100km [US 14mpg] [UK 16.6mpg] around town, A/C usually on.
country trips around 12lt/100km [US 19.6mpg] [UK 23.5mpg]
best ; freeway max 90-100kmh [had the spare tyre fitted] 9.5lt/100km [US 24.8 mpg] [UK 30mpg]
This was coming home from the MTB race where I got my avitar pic from.
country trips around 12lt/100km [US 19.6mpg] [UK 23.5mpg]
best ; freeway max 90-100kmh [had the spare tyre fitted] 9.5lt/100km [US 24.8 mpg] [UK 30mpg]
This was coming home from the MTB race where I got my avitar pic from.
09-07-2012, 11:10 AM
#35
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it was snowing and I was nervous.... and got seriously sideways twice
I haven\t checked since then.........
So, very similar experience
07-04-2016, 02:30 AM
#38
You can call me Otis
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18 to 19 mpg mostly highway, 93 octane and a heavy right foot.
Stock exhaust and emissions, 'cep for no punkin.
(sounds better if spoken with a Darrell Waltrip accent).
Stock exhaust and emissions, 'cep for no punkin.
(sounds better if spoken with a Darrell Waltrip accent).
Last edited by OTR18WHEELER; 07-04-2016 at 03:33 AM.
07-04-2016, 10:48 AM
#39
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I never calculated the mileage per say, but in town I do around 550 kms (330 miles) and on the highway about 700 kms (420 miles). And this is with a spirited drive in town. On the highway I try to keep it at 66 mph (110 kph) I am not so lucky with the police !
07-04-2016, 10:13 PM
#40
Pro
1991 GT with a tailwind getting average 18-20 @ 70mph
07-05-2016, 01:44 AM
#42
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I learned "hypermiling" in a Prius and then a Volt. In cars with regeneration, the trick is to drive in a manner that avoids braking whenever possible. The foot comes off the gas as soon as that light out there turns yellow, and there's a lot of low-speed coasting (which can tick off the guy behind).
My first full tank in the 928 produced an average of 14 mpg. I then refreshed the ignition and fixed a few other items, and the second tank was significantly better over the same general routes.
AND THEN...
I tried hypermiling. No regen, of course, but the energy-conservation principles are valid. The acceleration model calls for a very light throttle, the highway model requires relatively low driving speeds, and the deceleration model requires dissipation of as little energy as possible via heat (braking), which means a lot of coasting as soon as a future stopping point becomes visible. It was boring, but the car did a bit better than 22mpg on the first tank (25% surface streets) and almost 25mpg on the second one (nearly all freeway at 55-60mph, which is very difficult to maintain). Point proven, I reverted to my normal driving and mpg dropped to the mid-teens.
At $3 per gallon, standard driving costs about $0.20 per mile. Hypermiling can drop that to about $0.14, but it is frustrating and boring and not worth the pennies. I will drive the 928 about 5k miles this year, so driving pleasure will cost me 5000*.06 or another $300. A bargain!
Besides, I think under 80 on the freeway is bad for the engine...
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My first full tank in the 928 produced an average of 14 mpg. I then refreshed the ignition and fixed a few other items, and the second tank was significantly better over the same general routes.
AND THEN...
I tried hypermiling. No regen, of course, but the energy-conservation principles are valid. The acceleration model calls for a very light throttle, the highway model requires relatively low driving speeds, and the deceleration model requires dissipation of as little energy as possible via heat (braking), which means a lot of coasting as soon as a future stopping point becomes visible. It was boring, but the car did a bit better than 22mpg on the first tank (25% surface streets) and almost 25mpg on the second one (nearly all freeway at 55-60mph, which is very difficult to maintain). Point proven, I reverted to my normal driving and mpg dropped to the mid-teens.
At $3 per gallon, standard driving costs about $0.20 per mile. Hypermiling can drop that to about $0.14, but it is frustrating and boring and not worth the pennies. I will drive the 928 about 5k miles this year, so driving pleasure will cost me 5000*.06 or another $300. A bargain!
Besides, I think under 80 on the freeway is bad for the engine...
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07-05-2016, 06:24 AM
#43
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I find that my S4 gets better mileage at 80 mph than at 65 mph. So that's interesting.
Another funny thing is that the BMW 650i, a car I am considering buying, lists the exact same mileage as the S4 (15/20). So that's progress??
Another funny thing is that the BMW 650i, a car I am considering buying, lists the exact same mileage as the S4 (15/20). So that's progress??
07-05-2016, 10:43 AM
#44
If you drive a 928 why do you care? It's not about miles per gallon but smiles per mile......I don't have either so why am I even posting?
