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I feel like an outlier here because I never was able to tell a difference in daily driving between Shell/Esso/Chevron 91, which I used interchangeably. But I admit I did always have a perception that Shell was the highest "quality", whatever that means.
My current vehicle only needs 87 and I enjoy that it's cheaper lol.
What are they doing to reset/relearn the ECU between tests?
quick update -- straight from the horse's mouth:
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I cleared the codes which reset fuel trims. It learns right after being reset and when learning from scratch Chevron makes around 275whp on the 1st pull. Shell made around 240whp consistently in the first pull. Then they both adapt and gain and then lose power as they adapt to the fuel and it figures out what it can do with the fuel
Funny you mention Petro 91 because that is a gas station/brand I almost never go to. I've never had good results with their gas and my cars always run like crap after filling up on Petro 91. Most dyno threads always seem to be a comparison between Shell and Chevron, never Esso, Petro, Husky/Mohawk, or Costco.
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Originally Posted by BIC_BAWS
I literally do not plan on buying another vehicle in my lifetime, assuming it doesn't get written off.
I might be the only one who thinks this but the best thing about Petro Can is you can tap your credit card on the pump, no need to insert chip and enter PIN.
Funny you mention Petro 91 because that is a gas station/brand I almost never go to. I've never had good results with their gas and my cars always run like crap after filling up on Petro 91. Most dyno threads always seem to be a comparison between Shell and Chevron, never Esso, Petro, Husky/Mohawk, or Costco.
Only saying petro because that's what we sell, so that's what goes in the R8. Have not really noticed a difference in types of gas from selling ESSO, Tempo, Shell, and Petrocan. The only problem we had was with Shell when they changed the formula and it caused problems with gauges. That was across North America.
Petro is considered top tear, Husky is not. Husky is not building any new gas stations and is now also an ESSO dealer. Basically a middle man between corporate ESSO and the gas station.
We need someone in the gas industry to really explain what's going on.
__________________ Until the lions have their own historians, the history of the hunt will always glorify the hunter.
I might be the only one who thinks this but the best thing about Petro Can is you can tap your credit card on the pump, no need to insert chip and enter PIN.
Shell, Husky, and Esso have mobile apps that allow the purchase to be done entirely on your phone. All you gotta do is pretty the physical octane type button on the pump, and pick up the fuel gun afterwards.
With Esso 91 I got significantly better mileage out of my wifes old 97 Prelude. The price jump from 87 to 91 varies wildly all over town though so idk how it works out in terms of actual $/km.
__________________ 1991 Toyota Celica GTFour RC // 2007 Toyota Rav4 V6 // 2000 Jeep Grand Cherokee
1992 Toyota Celica GT-S ["sold"] \\ 2007 Jeep Grand Cherokee CRD [sold] \\ 2000 Jeep Cherokee [sold] \\ 1997 Honda Prelude [sold] \\ 1992 Jeep YJ [sold/crashed] \\ 1987 Mazda RX-7 [sold] \\ 1987 Toyota Celica GT-S [crushed]
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Originally Posted by maksimizer
half those dudes are hotter than ,my GF.
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Originally Posted by RevYouUp
reading this thread is like waiting for goku to charge up a spirit bomb in dragon ball z
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Originally Posted by Good_KarMa
OH thank god. I thought u had sex with my wife. :cry:
Well I guess I'll be switching to Chevron 94 after 10 years of Shell.
Airmiles will still be good for my Safeway runs.
I'm interested to see if I'll be able to feel a difference however my car isn't tuned; only bolt ons. Probably not on a day to day basis but 40HP difference on an S4 would be quite noticeable on the road, no?
Question for those of you in the know; if I'm pumping 91 from a nozzle that's also used for 87/89... am I pumping residual regular in the line from the last person to fill up before 91 kicks in or does the fuel go back into their respective tanks after stopping? I think I've only been to one or two Shells in town that had a dedicated 91 nozzle.
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I've started making chevron 94 my regular choice since the shell near me always gouges high traffic times at the pump by like 10-15c. Milage in the e36 actually seems a bit better with shell, but the car feels better with chevron as of the last year or so.
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98 technoviolet M3/2/5
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Originally Posted by boostfever
Westopher is correct.
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Originally Posted by fsy82
seems like you got a dick up your ass well..get that checked
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Originally Posted by punkwax
Well.. I’d hate to be the first to say it, but Westopher is correct.
Question for those of you in the know; if I'm pumping 91 from a nozzle that's also used for 87/89... am I pumping residual regular in the line from the last person to fill up before 91 kicks in or does the fuel go back into their respective tanks after stopping? I think I've only been to one or two Shells in town that had a dedicated 91 nozzle.
The fuel from the previous fill up stays in the hose. So if you are filling up with 91 and the last person bought 87, you'll have at least the entire hose's worth of 87 gas, if not a tad more.
Eons ago, Shell used to have a separate nozzle for V-Power, but I don't think I have seen separate setup like that for a very, very long time. I think Chevron is the only one that does it now.
Funny you say that because Costco gas uses Top Tier additives, and that seems like it uses a Shell base. Their 91 hasn't caused any issues on my GTI.
yes been putting in shell since not being able to fuel from costco bellingham
will scope out some esso pumps if they're really also top tier
port injected higher compression still gets chevron 94
I have used Chevron 94 on any vehicle that was even remotely considered "performance" for as long as I can remember and I'll always seek out a Chevron even for 87. Not sure where the loyalty came from but thanks to these videos my undying zero research driven love is now justified. Lol!
I might be the only one who thinks this but the best thing about Petro Can is you can tap your credit card on the pump, no need to insert chip and enter PIN.
Loving those new app; now how to fill my car without touching the handle...
Funny you mention Petro 91 because that is a gas station/brand I almost never go to. I've never had good results with their gas and my cars always run like crap after filling up on Petro 91. Most dyno threads always seem to be a comparison between Shell and Chevron, never Esso, Petro, Husky/Mohawk, or Costco.
When I was in Alberta, I used Petro-Canada 94 in my Camaro and it was fine. Curious how that would do against Chevron 94.
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Originally Posted by Manic!
Only saying petro because that's what we sell, so that's what goes in the R8. Have not really noticed a difference in types of gas from selling ESSO, Tempo, Shell, and Petrocan. The only problem we had was with Shell when they changed the formula and it caused problems with gauges. That was across North America.
Petro is considered top tear, Husky is not. Husky is not building any new gas stations and is now also an ESSO dealer. Basically a middle man between corporate ESSO and the gas station.
We need someone in the gas industry to really explain what's going on.
Petro-Canada dropped out of Top Tier a while ago. No idea why, some have rumoured that they just don't want to pay the fee.
For my car (2018 Civic Si), Chevron 94 runs better than Shell 91.
I run an E10 blend with a fairly aggressive OTS tune (24.5 psi + ~30 deg. adv. timing) and monitor stuff daily.
Even blended with ethanol, my car detects minor knock on Shell 91 while my car warms up; it never does that on Chevron 94. That knock goes away once warm though.
Here's how I rank gas in the lower mainland for my car (determined by knock readings):
Chevron 94 E10 blend > Shell 91 E10 blend > Washington Shell 92 > Co-op E10 blend > Chevron 94 > Shell 91 > Costco 91 >> Petro 91 (car hated this stuff, possibly bad gas)
As already stated, Chevron 94 can be inconsistent. It seems like 1/5 tanks isn't as knock resistant as the others.
If cats always land on their feet, and toast always lands butter side down, what would happen if you strapped burnt toast to the back of a cat and dropped it?
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