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Old 03-09-2012, 11:21 AM   #1 (permalink)
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Got a good idea of my cold start penalty today

Today when i had just parked my car after driving home i noticed that i had forgotten my phone at work. Oh well, no choice but to go get it... But i had a chance to see what mileage i would get starting out with a warmed up engine.

On the regular trip i got:
0.64L there over 9.2km giving 6.96L/100km or 33.8MPG
0.69L back over 9.2km giving 7.50L/100km or 31.4MPG

round trip 7.23L/100km or 32.5MPG

On the extra trip that was started with a warm engine i got:
(Imagine a little drum roll here!)
0.36L there giving 3.91L/100km or 60.1MPG!
0.47L back giving 5.11L/100km or 46.0MPG

round trip 4.51L/100km or 52.1MPG

Morning temps about 0⁰C, and 3⁰C on the day for trips 2,3,4.

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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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Old 03-09-2012, 11:30 AM   #2 (permalink)
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Wow thats wild! Guess thats why grill blocks seem to be effective for most people, allowin the motor to warm up quicker.
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Old 03-09-2012, 11:55 AM   #3 (permalink)
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...and, pre-warming it before you start it up first thing in the morning will get you even better MPG results!
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Old 03-09-2012, 12:39 PM   #4 (permalink)
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Princess - '92 Mazda MX-3 GS
House of Tudor
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90 day: 53.54 mpg (US)

Shirubāarō (*´ω`*) - '05 Toyota Prius Executive
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90 day: 54.88 mpg (US)

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Until i build a fuel based heater the only thing i have to pre-warm it with is happy thoughts.

Wanna help think happy thoughts for Princess?
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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Old 03-12-2012, 08:30 AM   #5 (permalink)
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Jakobnev, was the traffic similar to your normal commute? Could morning jams increase add to your cold consumption?
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[Old] Piwoslaw's Peugeot 307sw modding thread
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Old 03-13-2012, 06:54 PM   #6 (permalink)
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Princess - '92 Mazda MX-3 GS
House of Tudor
Team Mazda
90 day: 53.54 mpg (US)

Shirubāarō (*´ω`*) - '05 Toyota Prius Executive
Team Toyota
90 day: 54.88 mpg (US)

Blue Thunder - '20 Hyundai IONIQ Trend PHEV
Team Hyundai
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Thanked 701 Times in 444 Posts
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Traffic was minimal all trips, but on the first one a ¤£@¤ pedestrian triggered a red light by pushing a button - right when i was starting a coast. It might have been 0.61-0.62 instead of 0.64 other wise.
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
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Old 03-13-2012, 09:55 PM   #7 (permalink)
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That's a huge difference. if only we could have a block/engine heater that could warm up the engine to normal operating temperature without using 2000kwh

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