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30 mpg?

Discussion in 'Performance' started by bumpas toy, Nov 19, 2008.

  1. fupabox

    fupabox Well-Known Member

    My last tank average was 14km per litre......the industry standard is only USG in places where they use a USG...in Europe when they say gallon they are referring to the imperial gallon..same in Asia and Canada......but the easiest way is as you say km per litre
    Last edited: Jan 28, 2010
  2. starpuss

    starpuss Member

    my last tank in the city i did 22 mpg. in -20 weather.

    let it run for 5,min then drive to work witch takes 5min. then start it up let it run for 5 min then go home. i put on 10km's aday. when i go to work and back.
  3. Little Dumper

    Little Dumper Member

    Nope, we have used the US gallon for mpg for 30years. Every since we stopped selling fuel in imperial gallons.

    Km/L is really the best way to go. I have been reading some interesting articles from the US with regards to doing it in gallons/100miles and it's getting about the same response as a flaming bag of poo would....LOL.

  4. fupabox

    fupabox Well-Known Member

    Ok the mpg thing has me confused..you mean when dealers state .on.. say an add for a civic..they give the expected mpg in US gallons ??
  5. spaner

    spaner Well-Known Member


    4L per Gal Imp - 3.7854L per US Gal

    An Imp Gal will get you farther so it is used in fuel econo calculations..bigger number

    Although, the US Gal measure is used for many things, milage is not one of them..
  6. oldsnowman

    oldsnowman Member

    Hi everyone

    there is 4.54L in a Canada (Imp) gallon. i was in school when the metric system came in so i still know how to convert back and forth. the Imp gallon is alive and well in Canada, i go by Imp MPG's all the time and its works well. i like the K/L's idea, the new numbers for my truck are 15.9k's/L highway and 12.3k's/L in town. :D
  7. Little Dumper

    Little Dumper Member

    You know what, I was told that a looooong time ago about the mileage and never really thought about it ('cause I'm the type that could care less about mileage). I always thought the mileage ratings in the last 5 years or so (now that I kind of pay attention to that) were a load of crap, that there was no way a full size truck could get mileage that good. All this time I though that was based on a US gallon. (smacks head)

    That means my 1996 LT1 V8 Caprice ex-ghost car is getting an astonishing 26mp(I)g average gas mileage compared to my buddies 2007 Nissan Altima that only gets 25mp(I)g average (3.5l v6). That's retarded that my tuned 2 ton boat is better than an almost brand new, lighter, smaller engined, mid size sedan. My Cappy will go 240km/h too (don't ask how I know).

    Suddenly I am very, very happy with my tuning results on my CopCar.....incredible. I got 8.8km/L on my last tankfull, 70% hiway at 125km/h average.

    I stand corrected gents, I still like km/L over L/100km though. I think the Japanese got it right and the Europeans/Ausies (and CDN Gov.) can stuff it.

    Last edited: Jan 30, 2010
  8. fupabox

    fupabox Well-Known Member

    14km per litre last tank:)
  9. Stuff99

    Stuff99 Moderator Staff Member

    i only got 9.6km/l last trip. horrrible horrrrrrirble head wind and -30 or better wind chill and lots of idle time!
  10. anthill

    anthill Member

    Been getting between 11 and 14 km/L the past few highway drives... strangely when cruising at 80km/h on side roads I seem to get worse mileage than at 100km/h on 4xx highways!

    Maybe I'm just doing too good a job of drafting big trucks :eek:

    BTW, http://www.fuelly.com is a really convenient way to track your long-term mileage trends. It clued me in to a worn distributor cap/rotor.
  11. anthill

    anthill Member

    By the way, the reason for using L/100km is it helps you make smarter car purchases. For example, in which case is it worth paying $2000 more for a fuel economy package?

    a) A car that gets 25km/L rather than 16.5 km/L

    b) A car that gets 7 km/L rather than 6 km/L

    Obviously in a) you'd take the deal, since you get 8.5 km/L more for the same $2000, right? For b), you only get one km/L more, that's a crappier choice.
    Last edited: Nov 21, 2010
  12. Little Dumper

    Little Dumper Member

    Ummm......your examples just used km/l, the way I and anyone over the age of 30 can relate to much better than l/100km.

    If some nerd wants to figure out vehicle costs on an annual basis using l/100km, they can go wild. For the rest of us, I know how far it is to my sisters house (15km), I know how much a litre is (just hold a bottle of oil in your hand). If I can get there on 1 litre in car A as opposed to car B that will only get 2/3 of the way there (10km/l) that is a much more vivid way to look at efficeincy than some marketing driven, accounting shell game mumbo jumbo.

    At any rate, my mileage has taken a dump too with this cold weather (-10, I know, boohoohoo from you flatlanders :)).

  13. anthill

    anthill Member

    Yep, no argument there - mpg and km/L are more concrete and easier to use in day-to-day decisions.

    I used km/L in my example cause it was a trick question - a) and b) options get you the exact same fuel savings - 2L per 100km.

    Calling L/100km an accounting shell game is unfair. I'd say it's the opposite - mpg distorts fuel economy numbers and makes it easier for car salesmen to:
    • upsell people on compact/hybrid cars whose high price isn't worth their fuel efficiency improvement ("WOW, 60mpg is way bigger than 40mpg!")
    • while making it easier to get people to ignore running costs when buying trucks ("oh, 11mpg vs. 9mpg, big deal")
    In that case, choosing the hybrid gains you 2L/100km, where choosing the gasoline (instead of diesel) pickup truck loses you nearly 5L/100km.

    One L/100km saved always means the same $$$ in your pocket. One mpg saved can mean anything, depending on how fuel efficient your car is already, for example: one more mpg on a moped = $, while one more mpg on a Sherman Tank = $$$$$$$$$$$$$$$$$.
    Last edited: Nov 23, 2010
  14. skidder

    skidder New Member

    well i'm not sure what i'm getting in my suzuki carry,but in my 5.4l f-150 it was costing about 22 bucks a day to get to work and in my suzuki at -10 c with the diff light on in 2wd it cost me appx 12 bucks a day at 1.10 a litre.i found a page on the net on all the different models of suzuki s .for my truck at a steady speed of 60 kmh no hills / no wind i'm supposed to get appx 21km per litre .can t remember where i found this info . but if it is correct it should only cost me appx 7 bucks a day .guess i need to fine tune my carb .
  15. udidwht

    udidwht Member

    They don't use ethanol blends in Japan as well. E-10+ = lower MPGs.
  16. Daily-carry

    Daily-carry New Member

    I'm really confused. I've been getting 35-37 mpg (US gallon). I haven't done a tune up yet. I don't much over 50 mph commuting and I drive in suburbs or dirt roads doing delivery. I've filled up three times now.
  17. maboyce

    maboyce Active Member

    I too am curious what 'normal' is. I consistently get 25 mpg US if I use the freeway and 27 if I don't. It doesn't feel spectacular, but I also don't see obvious signs of overfuelling or anything like that. I need to look in the service manual when I get home and see if they have an expected range.
  18. MikeD

    MikeD Member

    What are you confused about? That sounds right on point, and better than most of us, for a 660cc vehicle running at high rpms.
  19. MikeD

    MikeD Member

    I think anything over 25 is a good sign for these motors at 20+ years old. Anything under and your probably dealing with old age, lack of tune up, and other maintenance type issues.

    I run 91 non ethanol and see ranges between 25-40mpg depending on how hard I am pushing the motor.
  20. t_g_farrell

    t_g_farrell Active Member

    On a long trip (twice over 1000 miles round trip each time) where I'm basically go flat out most of the time I see about 41 kpg or about 25 mpg. Around town I see up to maybe mid 30s mpg.
  21. udidwht

    udidwht Member

    That would be the difference due to the torque band (btwn city vs hwy). Keep the RPM at roughly at or near 'peak torque range' (whatever gear you're in) will yield the best MPGs. Forget what Google says with respect to MPG (50mpg) in these vehicles they never got 50 mpg even when new. Speed limits on the majority of highways in Japan are 60 kilometer per hour.
    t_g_farrell likes this.

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