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Vancouver Off-Topic / Current Events The off-topic forum for Vancouver, funnies, non-auto centered discussions, WORK SAFE. While the rules are more relaxed here, there are still rules. Please refer to sticky thread in this forum.

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Old 03-17-2014, 02:51 PM   #1
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DIY 91 octane at Chevron saves $

Car calls for minimum 91 octane.

Pull in to Chevron.

$1.539 for 94
$1.509 for 91
$1.369 for 87

Challenge accepted

In two transactions, i put in:
15.600 L of 94
10.322 L of 87

Fill octane = ((Fill 1 octane + fill 1 vol)+(fill 2 octane + fill 2 vol))/(fill 1 vol + vill 2 vol)
=((15.6*94)+(10.322*87))/(15.6+10.322)
=91.21

Cost per L:
$ = ((Fill 1 vol * Fill 1 price per L)+(fill 2 vol * fill 2 price per L))/(fill 1 vol + vill 2 vol)
=((15.6*1.539)+(10.322*1.369))/(15.6+10.322)
=1.471

My realized savings:
savings=(potential cost per L * total volume)-(actual cost per L * total volume)
=(1.509*(15.6+10.322))-(1.471*(15.6+10.322))
=$0.99

I didn't even save a whole dollar
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Old 03-17-2014, 02:56 PM   #2
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It's called blending the fuel and that's what the dispensers automatically do for you when you pick the mid grades. Yes you didn't even save a whole dollar but think about that extra money the gas stations make because of that...
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Old 03-17-2014, 03:12 PM   #4
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Costco 91, $1.47.3, no ethanol.....close enough
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Old 03-17-2014, 03:22 PM   #5
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Thanked the meme but I'd be shocked if an OP with 510 in the username was Chinese or EI.
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Old 03-18-2014, 07:23 AM   #6
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Thanked the meme but I'd be shocked if an OP with 510 in the username was Chinese or EI.
You're right.
It's the tiny bit of Jewish in me coming out.
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Old 03-18-2014, 09:23 AM   #7
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Or you could just full in the states.

92 is usually ~$0.90 at tulalip
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Old 03-18-2014, 09:47 AM   #8
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Hello PR fill up!
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Old 03-18-2014, 11:02 AM   #9
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I always fill 94 chevron. I just make sure to barely touch the nozzle when filling. Sure it takes me 5 minutes to fill up my 65litre tank but I get the most out of every gas fill up
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Old 03-18-2014, 11:10 AM   #10
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Lower mainland fuel taxes are rough. 135.9 at Chevron here when I filled up 2-3 days ago (118.9 for 87).
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Old 03-18-2014, 11:28 AM   #11
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Go ride a scooter, savings $$$$
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Old 03-18-2014, 12:50 PM   #12
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Quote:
Originally Posted by w1nt3rw0lf View Post
I always fill 94 chevron. I just make sure to barely touch the nozzle when filling. Sure it takes me 5 minutes to fill up my 65litre tank but I get the most out of every gas fill up
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Old 03-18-2014, 01:07 PM   #13
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Originally Posted by w1nt3rw0lf View Post
I always fill 94 chevron. I just make sure to barely touch the nozzle when filling. Sure it takes me 5 minutes to fill up my 65litre tank but I get the most out of every gas fill up
please explain the benefits to this
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Old 03-18-2014, 01:35 PM   #14
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Originally Posted by w1nt3rw0lf View Post
I always fill 94 chevron. I just make sure to barely touch the nozzle when filling. Sure it takes me 5 minutes to fill up my 65litre tank but I get the most out of every gas fill up
I go hunting for loose change around vending machines, pay phones and water fountains too.
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Old 03-18-2014, 03:15 PM   #15
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please explain the benefits to this
there is none other then wasting time, he's prob the type of person that shakes the hose thinking he will get more fuel out of it... The only thing that will do is cause a spill since the automatic shut off of the nozzle won't work when the tank is full.
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Old 03-18-2014, 07:41 PM   #16
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Look, every drip counts.



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Old 03-18-2014, 08:26 PM   #17
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Look, every drip counts.



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That's what she said
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Old 03-18-2014, 08:28 PM   #18
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You're right.
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Old 03-18-2014, 08:35 PM   #19
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Old 03-18-2014, 09:33 PM   #20
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Fill up early in the morning or when it's still cold. The colder the ground the more dense the gasoline is. When it's warmer out, you're not exactly getting a liter for every liter you pump. Pump on slow speed to minimize vapors when pumping.

That's pretty much all the "tips" I know. Not sure how valid any of this is, I generally ignore all this when I fill up lol. I top it off if it's cheap, or fill when I'm at 1/2 tank. I don't bother slowly triggering the nozzle, I full blast so I can gtfo quicker lol
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Old 03-18-2014, 09:56 PM   #21
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Originally Posted by b0unce. [?] View Post
Fill up early in the morning or when it's still cold. The colder the ground the more dense the gasoline is. When it's warmer out, you're not exactly getting a liter for every liter you pump. Pump on slow speed to minimize vapors when pumping.

That's pretty much all the "tips" I know. Not sure how valid any of this is, I generally ignore all this when I fill up lol. I top it off if it's cheap, or fill when I'm at 1/2 tank. I don't bother slowly triggering the nozzle, I full blast so I can gtfo quicker lol
Not sure if srs. Gasoline is stored underground in 1000's of liters. It would take much more than 7-8 hours for it to change the temperature of the gasoline to make it more "dense". Plus the temperature of gasoline is usually regulated at around 50-55 degrees C anyways. Only difference would probably be summer vs winter filling.
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Old 03-18-2014, 10:27 PM   #22
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Dont even bother filling up in vancouver anymore. My parents go grocery shopping to bellingham probably every 2 weeks. Fills up moms car there, brings back 5 of 20 liters gas containers, fill up both my dads car and my car. Bingo. If not going to the states, I fill up at superstore using presidents card, saves 6 cents a liter.
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Old 03-18-2014, 10:34 PM   #23
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Old 03-18-2014, 10:39 PM   #24
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Quote:
Originally Posted by ancient_510 View Post
Car calls for minimum 91 octane.

Pull in to Chevron.

$1.539 for 94
$1.509 for 91
$1.369 for 87

Challenge accepted

In two transactions, i put in:
15.600 L of 94
10.322 L of 87

Fill octane = ((Fill 1 octane + fill 1 vol)+(fill 2 octane + fill 2 vol))/(fill 1 vol + vill 2 vol)
=((15.6*94)+(10.322*87))/(15.6+10.322)
=91.21

Cost per L:
$ = ((Fill 1 vol * Fill 1 price per L)+(fill 2 vol * fill 2 price per L))/(fill 1 vol + vill 2 vol)
=((15.6*1.539)+(10.322*1.369))/(15.6+10.322)
=1.471

My realized savings:
savings=(potential cost per L * total volume)-(actual cost per L * total volume)
=(1.509*(15.6+10.322))-(1.471*(15.6+10.322))
=$0.99

I didn't even save a whole dollar
You did not account for the ethanol in the 87 octane gasoline, which is blended with ethanol (has a lower calorific value/energy content). Overall, you've blended gas that is "lower quality" than straight 94 octane gas.

Quote:
Originally Posted by b0unce. [?] View Post
Fill up early in the morning or when it's still cold. The colder the ground the more dense the gasoline is. When it's warmer out, you're not exactly getting a liter for every liter you pump. Pump on slow speed to minimize vapors when pumping.
Quote:
Originally Posted by dyan View Post
Not sure if srs. Gasoline is stored underground in 1000's of liters. It would take much more than 7-8 hours for it to change the temperature of the gasoline to make it more "dense". Plus the temperature of gasoline is usually regulated at around 50-55 degrees C anyways. Only difference would probably be summer vs winter filling.
Gasoline sold in Canada is adjusted by an automatic temperature compensator at the pump, so it makes no difference what temperature we buy gas at (the standard temperature of gasoline is referenced at is 15C or 60F.) This pretty much work against us because the average temperature in Vancouver is less than 15C
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Old 03-18-2014, 11:49 PM   #25
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Originally Posted by anxiety View Post
Dont even bother filling up in vancouver anymore. My parents go grocery shopping to bellingham probably every 2 weeks. Fills up moms car there, brings back 5 of 20 liters gas containers, fill up both my dads car and my car. Bingo. If not going to the states, I fill up at superstore using presidents card, saves 6 cents a liter.
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