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Old 03-05-2017, 04:46 PM   #19
Cartel
 
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I filled up at CO-OP and my power sucked.
Never again
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Old 03-07-2017, 06:10 PM   #20
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Quote:
Originally Posted by Cartel View Post
I filled up at CO-OP and my power sucked.
Never again

Well I guess you can blame Top tier gas.

All grades of Co-op High Performance Gasoline are Top Tier Certified and are available at all Co-op Gas Bar locations in Western Canada.

http://coopfuel.ca/wps/portal/crs/co...8-32d900432258


In Canada, Chevron Canada, Petro Canada, Shell Canada, Esso, Tempo, CO-OP, and most recently Costco Wholesale, have attained the designation.

https://en.wikipedia.org/wiki/Top_Ti...rgent_Gasoline
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Old 03-07-2017, 07:40 PM   #21
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^^^ So, you think top-tier gas is to blame? That's interesting.
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Old 03-07-2017, 10:42 PM   #22
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Originally Posted by kimona View Post
^^^ So, you think top-tier gas is to blame? That's interesting.
Note the rolls eyes emoji indicates sarcasm. I do think that many people over think and show too much brand loyalty when buying gasoline which is basically a commodity.
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Old 03-07-2017, 11:53 PM   #23
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^^^ Okay. I get it now. Thanks.

I always make a point of buying top-tier gas for my cars. I just thought it was better for the motor and fuel economy.
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Old 03-08-2017, 01:13 PM   #24
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If I'm not mistaken, Costco is top-tier. For what it's worth, I thought to try it when we got our membership, waited in a long line and although it was cheaper, I got less mpg that tank.

I tend to stick with Chevron.
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Old 03-23-2017, 10:57 PM   #25
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so there is a less-than-3 year old Murphy's near my house that I always fill up at. it's cheap and convent. my father was talking about how terrible their fuel is, so I filled up at the shell for the last 2 weeks that's kind of a pain to get to and is all old and 80's.

my gas millage increased 4.6mpg (1.96km/l) I can't believe spending an extra dollar got me an extra 50 miles. I guess it's cheaper too...
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Old 03-24-2017, 01:22 PM   #26
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SUNOCO is becoming a Top Tier gas on April 1st . https://www.sunoco.com/quality-fuels/ultratech/
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Old 03-24-2017, 08:14 PM   #27
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No complaints using Shell gasoline. I have been averaging 41.1 MPG for the last 1.5 years combined, even with the A/C running half of that time. Better than I was expecting when I purchased my Yari.
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Old 03-27-2017, 05:25 PM   #28
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Is this top tier gas only available in the USA? as here in Canada theres no mention of it and most people here would be hard pressed to name a top tier station/brand or even describe what top tier means. One would think if this top Tier gas was superior in some way gas companies would be advertising such an advantage.
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Old 03-27-2017, 05:39 PM   #29
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I thought top tier was a North America thing, someone can correct me if I'm wrong.

I used to always use Shell and was happy with that, now that I moved to a different city I now use Esso since it's close and is top tier as was Shell.
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Old 03-27-2017, 09:11 PM   #30
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Quote:
Originally Posted by B.B._07 View Post


In Canada, Chevron Canada, Petro Canada, Shell Canada, Esso, Tempo, CO-OP, and most recently Costco Wholesale, have attained the designation.

https://en.wikipedia.org/wiki/Top_Ti...rgent_Gasoline
this lists a few in Canada
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Old 04-24-2017, 10:36 AM   #31
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valve deposits - Top Tier 34.1mg vs non TT 600.6mg

Here's more on the subject. I like the port injection of the Yaris over Gas Direct injection. GDI engines that delay the intake valve closing via variable valve timing just let's the gases back into the intake port with no chance of a fuel injector spray "upstream" to clean the back side of the intake valves.

https://www.aaa.com/AAA/common/AAR/f...ull-Report.pdf
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Old 04-24-2017, 09:35 PM   #32
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that is true, but also most GDI engines recommend using top tier fuels...
my fuel millage was up another 2.1 mpg last tank...
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Old 05-03-2017, 01:58 AM   #33
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http://www.fuelly.com/car/toyota/yar.../07vios/544075

What I'm doing so far. I don't do advanced hypermiling techniques anymore either, I just stick with Shell (and when I need to, 76).
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Old 07-22-2017, 11:28 PM   #34
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Does anyone buy gas at Sam's club locations, any issues?
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Old 07-22-2017, 11:49 PM   #35
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^^^ I don't buy gas at Sam's Club because it's not top tier gas.
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Old 07-23-2017, 11:40 AM   #36
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I might be an outlier here but tried shell a few times since t-mobile Tuesdays had promotions for $0.25 off each gallon at shell.

I usually fill up at Costco but with shell, The torque felt about the same on my 5 speed yaris but my mpg dropped from 34mpg to 30mpg. I tried filling up at different shell stations with the same result. I can maintain about 34mpg with chevron gas but I just can't figure out why my mpg is much less with shell.

The 76 near my house produced the same results as well.
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