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02-01-2015, 03:09 PM
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#1 | | GO FLAMES GO
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| Better Gas Mileage with US fuels?
So i make relatively frequent trips to WA and OR. I was always curious why US fuels give me better fuel mileage. When i put CDN 87 in my tundra, it reads 486km till empty(everytime like a default). When i fuel up with US 87 it reads 580km till empty, and have occasionally popped to 600km+ with higher octane.
I fill up just to the fuel nozzle "click" shutoff. I dont fill up the fuel tank neck, it is the same amount every time.
Just better fuel and the ECU reads that there is a different type of fuel?
i know canadian fuel is shit...but that much shittier than our neighbours?
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02-01-2015, 03:14 PM
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#2 | | I bringith the lowerballerith
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What if it just seems that you're getting better mileage because your driving on a hwy to get to the states and the car thinks your travelling long distances and the range increases so that's why you're getting a higher range
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02-01-2015, 03:28 PM
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#3 | | GO FLAMES GO
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| Quote:
Originally Posted by kkthind  What if it just seems that you're getting better mileage because your driving on a hwy to get to the states and the car thinks your travelling long distances and the range increases so that's why you're getting a higher range | doesnt change whether i city drive or hwy drive in canada...it still defaults to 486km to empty @ full. I roadtrip all over BC have never got higher than 486km on CDN fuels
so when i city drive and hwy drive in the US it is over 580km to empty @ full.
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02-01-2015, 03:35 PM
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#4 | | Wunder? Wonder?? Wander???
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after a fill up my 328xi usually has max 450kms on the range metre but if i finish a long hwy drive its goes above 500kms this is on canadian 91
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02-01-2015, 03:39 PM
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#5 | | Zombie Mod
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| Quote:
Originally Posted by Tegra_Devil doesnt change whether i city drive or hwy drive in canada...it still defaults to 486km to empty @ full. I roadtrip all over BC have never got higher than 486km on CDN fuels
so when i city drive and hwy drive in the US it is over 580km to empty @ full. | Roadtripping BC is all about getting through/into the Rockies. Fuel is going to get guzzled climbing those hills.
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02-01-2015, 03:43 PM
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#6 | | GO FLAMES GO
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Originally Posted by Presto Roadtripping BC is all about getting through/into the Rockies. Fuel is going to get guzzled climbing those hills. | Okay, guess i should specify Alberta too, it is absolutely flat.
it doesnt explain it.
if i bust throught tanks in the prairies or a punch through a tank in the mountains or offroading.....486km EVERY TIME in CANADA
4x4ing, beach running, camping, hwy, city, whatever in the USA over 580km
there is something up for the difference of 100km of fuel difference...
different ethanol content?
City driving is city driving......if i go through 2 tanks in the GVRD or 2 tanks in Portland, it must be proof that US fuels are purely better than canadian fuels
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02-01-2015, 04:17 PM
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#7 | | Even when im right, revscene.net is still right!
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Lol, I feel I get better fuel economy using Shell Premium from the states compared to Chevron Supreme or Supreme Plus locally.
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02-01-2015, 06:49 PM
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#8 | | Witness protection
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do they mix ethanol into their fuels in the states?
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02-01-2015, 07:02 PM
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#9 | | RS has made me the bitter person i am today!
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Some of the gas stations in US has no ethanol in them, so you should be able to get a slightly better mileage overall if you are indeed filling up with pure gasoline. Ethanol-free gas stations in the U.S. and Canada
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02-01-2015, 07:24 PM
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#10 | | what manner of phaggotry is this
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stop determining your fuel economy by the lie-o-meter. that is your first problem
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02-01-2015, 09:52 PM
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#11 | | GO FLAMES GO
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i am not running on that...its just one of many things i use to calculate
but for some reason ONLY while filled with US gas I get 100km+ more
thats not just a random 20-50km difference that could be driving habits. that is a solid difference in quality of fuels
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02-01-2015, 10:36 PM
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#12 | | RS controls my life!
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do cars burn the same amount of fuel per liters when filling half a tank and full tank or normally better mileage on a full tank? seems as my car drains fuel much faster when I only fill 20 liters at a time only when my car is almost empty. I only fill full tank once in a while.
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02-02-2015, 12:18 AM
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#13 | | I contribute to threads in the offtopic forum
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I've noticed this as well.. Been filling up off and on in Sumas for 3 years
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02-02-2015, 12:21 AM
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#14 | | I am Hook'd on RS
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02-02-2015, 03:24 AM
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#15 | | I bringith the lowerballerith
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| Quote:
Originally Posted by vudooca |  how is this relevant to. This thread 
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02-02-2015, 05:02 AM
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#16 | | My homepage has been set to RS
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| Quote:
Originally Posted by SupraTTturbo2jz do cars burn the same amount of fuel per liters when filling half a tank and full tank or normally better mileage on a full tank? seems as my car drains fuel much faster when I only fill 20 liters at a time only when my car is almost empty. I only fill full tank once in a while. | Think of it like a slurpee.
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02-02-2015, 05:25 AM
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#17 | | RS has made me the bitter person i am today!
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| Quote:
Originally Posted by SupraTTturbo2jz do cars burn the same amount of fuel per liters when filling half a tank and full tank or normally better mileage on a full tank? seems as my car drains fuel much faster when I only fill 20 liters at a time only when my car is almost empty. I only fill full tank once in a while. | The raw MPG should be the same assuming there is no change in driving habit.
If anything, having less in your tank should do a tiny bit better given the reduced weight. (say, 20L vs full 100L) But the difference should be marginal at most.
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02-02-2015, 06:09 AM
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#18 | | Waxin’ Punks
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Use your actual trip odometer to compare and report back. I fill up in the states as well and have never noticed this.. admittedly I don't monitor the "until empty" gauge after filling up.
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02-02-2015, 06:41 AM
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#19 | | I contribute to threads in the offtopic forum
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02-02-2015, 07:26 AM
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#20 | | Willing to sell a family member for a few minutes on RS
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| Quote:
Originally Posted by Tegra_Devil So i make relatively frequent trips to WA and OR. I was always curious why US fuels give me better fuel mileage. When i put CDN 87 in my tundra, it reads 486km till empty(everytime like a default). When i fuel up with US 87 it reads 580km till empty, and have occasionally popped to 600km+ with higher octane.
I fill up just to the fuel nozzle "click" shutoff. I dont fill up the fuel tank neck, it is the same amount every time.
Just better fuel and the ECU reads that there is a different type of fuel?
i know canadian fuel is shit...but that much shittier than our neighbours? | I used to go to Abbotsford to get gas and I noticed that when I filled up there, it would get 570-600kms but when I filled up here in Surrey, I would only get 480km max.
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