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What affects MPGViews : 1868 Replies : 38Users Viewing This Thread : |
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Jan 23rd, 2018, 22:55 | #31 |
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Last Online: Mar 31st, 2021 00:19
Join Date: Dec 2016
Location: Suburban Philly
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Weight of right foot is by far the biggest factor...
that said, I keep my trip on miles to empty most of the time... filling up at the end of the work week after my stop start, up and down hill, barely long enough to warm the engine up commute itll usually read about 250ish... hit the highway and cruise at 75-80 it will climb for about an hour, peaking around 420 or so before it starts to come back down again |
Jan 23rd, 2018, 23:28 | #32 | |
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Last Online: May 2nd, 2018 09:14
Join Date: Sep 2011
Location: DownSouth
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Quote:
2/ Tyre type and pressures, BUT be careful about cheaper "Go Green", or Eco tyres, as they often have bad braking distance figures on cold or wet roads in particular. 3/ Condition of fuel injector tips (I use LM Diesel Purge every 50K km). 4/ Engine and gearbox oil type and viscosity. Thin oils that contain a lot of Moly reduce friction, 0W30 in winter and 0 or 5W40 in summer (If practical for a diesel only). 0W30 all year for petrol jobs. If you don't tow or use a big right boot on the go pedal, an 0W20 would be worth the risk in winter for a petrol job. Don't forget to use the OEM spec oil IF the car is under warranty! 5/ Weight (Of the car, not the driver). 6/ Traffic avoidance. 7/ Use of electric engine pre heat systems. 8/ EGR, CAT and DPF cleanliness. Obviously air density and wind effects make a difference, but like ring or valve seat wear, there is not much that can be done about such matters.
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2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards. SHELL ULTRA 5/40 & LIQUI MOLY CERATEC. Everyone should DYOR (Do Your Own Research) Last edited by skyship007; Jan 23rd, 2018 at 23:41. |
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Jan 24th, 2018, 07:10 | #33 |
Non Fragile
Last Online: Oct 13th, 2023 06:46
Join Date: Apr 2010
Location: Chadderton, Oldham
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Going uphill! I try to drive downhill as much as possible.
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Jan 26th, 2018, 13:20 | #34 |
Volvo S40
Last Online: Mar 27th, 2024 00:18
Join Date: Mar 2015
Location: Chichester
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sorry but do you not just have to drive back up them all again then?
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Jan 26th, 2018, 21:07 | #35 |
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Last Online: Mar 24th, 2024 19:47
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Below a certain speed [can't recall how fast]opening a window is more economical than having a/c on.Above that speed then the situation reverses.However having a window open at any speed adversely affects economy as does having anything electrical[radio/heated rear screen/air con/heater fan/whatever]switched on.Depends on how far you want to go to achieve economy.
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Jan 27th, 2018, 00:50 | #36 |
Non Fragile
Last Online: Oct 13th, 2023 06:46
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Location: Chadderton, Oldham
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Jan 27th, 2018, 02:17 | #37 | |
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Last Online: Today 09:36
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Location: Milton Keynes
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Quote:
HTH
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Jan 27th, 2018, 15:42 | #38 |
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Jan 27th, 2018, 21:36 | #39 |
240 Owner, VOC Member
Last Online: Feb 24th, 2023 16:13
Join Date: Sep 2016
Location: Saxmundham, Suffolk
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The two things that have most affected my MPG in my four years of driving (my driving style hasn't changed and I'd like to think I drive smoothly) are the weight of the car and the outside temperature.
In my Corsa my MPG was about 50 during summer and 45 in winter. Since removing the rear seats and trim (roughly 50kg) that has changed to 55 and 50 respectively. The van which has no modifications went from 57mpg in Summer to about 50.
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