MPG Stats 27

[frv]

Going home last night, 2UP, detour #8 then needed another longer detour to avoid a queue and some roadworks, 2.5°C, tail/crosswind SW7:
48.8 (Indicated 51.4) / 24.4

To work this morning, 2UP, freezing 0°C and slower than normal but not too bad, head/crosswind SSW6:
57.4 (Indicated 60.4) / 22.6

Tank down 0.5 at 53.9 (indicated 56.8) / 208.3 / Range 445 . Fuel gauge F_«««|««««E . UG down 0.6 at 55.6 / DTE 417

[frv]

Going home last night, 2UP, detour #8 again then yet again another slightly different detour to avoid the large queue to the roadworks near home, 2.5°C, tailwind W6:
48.1 (Indicated 50.6) / 24.2

To work this morning, 2UP, just below freezing -0.5°C and slower than normal again, headwind W8:
57.0 (Indicated 60.0) / 22.8

Tank down 0.4 at 53.5 (indicated 56.3) / 255.3 / Range 390 . Fuel gauge F__««|««««E . UG down 0.5 at 55.1 / DTE 364

Lost 2nd pip @ 233 miles

[frv]

3 times in a row! Last night, 2UP, detour #8 again then another detour to avoid 2 large queues on second half, 1°C, tailwind W6:
47.5 (Indicated 50.0) / 24.4

Needed to detour traffic light section this morning, 2UP, sub zero -5°C "warming up" to -3°C at work, struggled to keep the numbers up in the cold, headwind W2:
52.3 (Indicated 55.0) / 23.0

Tank down 0.7 at 52.8 (indicated 55.6) / 302.7 / Range 320 . Fuel gauge F___«|««««E . UG down 0.6 at 54.5 / DTE 310

Lost 3rd pip @ 288 miles

[frv]

Normal route looked OK last night on Google traffic but by the time I got there it was rubbish, 2UP, no detours but stop/start/crawl, -1°C, mainly headwind ENE10:
46.0 (Indicated 48.4) / 24.4

Collected youngest from youth club last night in the Hyundai i10, -1°C, great run going - didn't have to stop at all:
88.3 / 1.5
61.7 / 1.6 return

This morning, on my own, hovering around zero -0.5 to +0.5°C, cross/tailwind NE10:
59.2 (Indicated 62.3) / 23.0

Tank down 0.2 at 52.6 (indicated 55.4) / 346.8 / Range 270 . Fuel gauge F___«|««««E . UG down 0.2 at 54.3 / DTE 264

[frv]

Going home lunchtime Friday on my own, motorway route, 1.5°C, crosswind N14:
57.7 (FCD 60.8) / 21.2

Tank up 0.3 at 52.9 (FCD 55.7) / 368.0 / Range 250 . Fuel gauge F____|««««E . UG up 0.5 at 54.8 / DTE 248

Half tank @ 350 miles

Couple of journeys in the i10 yesterday:
64.8 / 10.7 - to garden centre in the morning, 3°C
60.5 / 8.7 - garden centre to Tossco to fill up (had a 5p off per litre coupon)
49.6 / 2.0 - back home

65.2 / 10.5 - to friends' house in the afternoon, 5°C
60.4 / 10.5 - back home

Not my turn to drive this week - car sharer’s turn

[tighterse]

Another fill up today. 29 miles left on the range indicator and fuel warning light lit so managed to squeeze in 54.01 litres. MPG from last fill 63.5 compared with car computed 61.8. Since there was a negative difference between actual and computed at last fill overall car computed accuracy is very close.

OK, think about this. It is said that "generally" car computers are optimistic. Should "in my/our experience" be substituted for generally. I say this because we are working with a vanishingly small sample - tens out of hundreds of thousand cars. Just a thought.

[frv]

You’re probably right TE - I’m using a 5.3% reduction on my numbers as that’s the average over-report on the indicated mpg on the on-board computer to the calculated actual over 42 tanks.

Monday morning, 2UP, detoured traffic light section, frosty 3.5°C, head/crosswind NW6:
58.3 (Indicated 61.4) / 23.0

Evening, 2UP, 5.5°C, detour #2 for a change - stop/start/crawl, tail/crosswind SW4:
45.9 (Indicated 48.3) / 20.6

This morning, could see there was a problem on the motorway so detour - 10mph crawl up a hill then more queues and detoured traffic light section again - slow and rubbish, frosty again 2°C, head/crosswind WNW8:
51.8 (Indicated 54.6) / 21.7

Tank down 0.2 at 52.7 (Indicated 55.5) / 433.3 / Range 165 . Fuel gauge F____|_«««E . UG down 0.4 at 54.4 / DTE 179

Lost 5th pip @ 416 miles

[frv]

Last night, 2UP, 10.5°C, back to detour #8 - although it's longer seems to keep moving better, tail/crosswind SW9:
51.0 (Indicated 53.7) / 23.1

This morning, motorway route, detoured traffic light section again, milder 8°C, cross/headwind SSW8:
59.0 (Indicated 62.1) / 21.7 - better!

Tank up 0.1 at 52.8 (Indicated 55.6) / 479.4 / Range 125 . Fuel gauge F____|_«««E . UG up 0.1 at 54.5 / DTE 134

[frv]

Last night, 2UP, 9°C, detour #8 - I spoke to soon! - very slow. Needed another detour after motorway stretch as well, tail/crosswind SW7:
46.3 (Indicated 48.8) / 24.4

This morning, motorway route, detoured traffic light section again, 3°C, cross/headwind SSW4:
53.9 (Indicated 56.8) / 21.7 - poor

Tank down 0.3 at 52.5 (Indicated 55.3) / 526.8 / Range 60 . Fuel gauge F____|__««E . UG down 0.2 at 54.3 / DTE 84

Lost 6th pip @ 482 miles

[frv]

Last Thursday evening, 2UP, 9°C, detour #8 plus extra detour, crosswind S4:
51.1 (Indicated 53.8) / 23.4

Friday night went to collect youngest from youth club but went via Tossco to fill up (using 5p/litre coupon), 6.5°C:
73.4 (indicated 77.3) / 2.1 - great run - very quiet

Tank Stats

Miles on tank: 552.3 miles
Litres: 46 litres @ £1.199 making it £1.149/litre (after coupon)
Calc. MPG : 54.58 MPG - best ever winter tank
Calc. Range: 65 miles (allowing for extra in tank)
FCD Range: 35
FCD MPG : 55.9 MPG (2.48% over-report)
UG MPG : 54.21 MPG (0.68% under-report)
No. of trips: 26
Average trip length: 21.2
Average speed 29mph
Driving time on tank: 20hrs 42mins
Days since last fill: 47
Commuting: 98.7% - highest ever - only 7.3 miles non-commuting
Ave. Temperature: 3.7°C
Ave. no. of people in car: 1.83
Pmpg for the tank: 100.1

Average FCD over-report over last 3.6 years is 5.25%

___________________

Petrol station to youth club, 6°C:
70.3 (Indicated 74.0) / 0.3 - pretty much rolled there with 2 pulses

Back home, 2UP:
45.8 (Indicated 48.2) / 1.5

___________________

Saturday morning went to North Yorkshire for a 4 day break, 4UP, 8 - 12°C, cross/tailwind SW9:
59.0 (Indicated 62.2) / 105.2 - to Whitby town centre

Late afternoon - steep uphill to accommodation, 13°C:
36.5 (Indicated 38.4) / 7.3

Various other trips over the next 2 days - some very steep hills which I couldn't fully engine brake down and uphill needed some extra momentum (AKA right foot ):
80.3 (Indicated 84.6) / 7.3 - back to Co-op, 12°C
33.2 (Indicated 35.0) / 3.5 - to restaurant for lunch, 13°C
38.7 (Indicated 40.8) / 5.0 - back to accommodation

40.1 (Indicated 42.3) / 10.5 - to Goathland, 8°C
49.0 (Indicated 51.6) / 10.9 - to Pub for lunch, 10°C
37.2 (Indicated 39.1) / 4.0 - back to accommodation

Tuesday morning went back home, 4UP, small detour for a closed road, 9.5°C, cross/headwind WSW12:
56.7 (Indicated 59.7) / 99.6

Tank at 54.2 (FCD 57.1) / 255.1 / Range 420 . Fuel gauge F__««|««««E . UG at 52.5 / DTE 335

Back to work today but not my turn to drive - car sharing