Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-07-2017, 02:26 AM   #1 (permalink)
EcoModding Apprentice
 
Join Date: Apr 2011
Location: Orange Country, CA
Posts: 102

Fiesta - '12 Ford Fiesta SE
90 day: 31.45 mpg (US)
Thanks: 36
Thanked 3 Times in 3 Posts
Shell vs Chevron

Posting this to share my experience with these two brands of gas.

So a Shell station re-opened up close to my house after being closed for probably over a decade (I remember seeing gas for $0.89 there when I was young lol). And since they now have their "V-Power Nitro+" gas that supposedly cleans better than their competitors I decided to fall for their marketing and to try it out, and as much as I could, only go to that station when filling up. Before I would switch between what I feel are the best top tier gas stations, Shell, Chevron, and Mobil, and only use those whenever I could.

Been going to that Shell station for over a year and I could only assume that my valves and pistons were staying clean lol, didn't notice any difference until a few weeks ago.

I was at a stop and noticed that my engine was running just a tiny bit rough. It seems like one of those things where the changes are so minuscule that you don't notice it until it's a little more significant.

I decided that my next fill up would be with gas from Chevron. About halfway through that tank of gas my engine was running totally smooth.

All I did was change gas from Shell to Chevron and will be sticking with it for a while.

I do remember reading an article a while ago, it said something along the lines of that even the cleanest gasoline will still leave deposits, so the best thing to do is go like 5k or 10k miles only on 1 brand of gas, then switch to another for another 5k or 10k, so that new gas gets rid of the deposits from the old gas. And it will take a long time for new deposits from the new gas to form. And not to mix gas, because that could create mixed deposits that are hard to get rid of.

Sounds reasonable, and matches up with my experience. I do know there are many variables, could have been a bad tank of gas the last time I filled up at Shell or whatever, but I would just like to share this experience.

I have a 2013 Dodge Dart aero, with the 1.4 turbo and only use 91 octane.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-07-2017, 08:39 AM   #2 (permalink)
Master EcoModder
 
Stubby79's Avatar
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 755

Topoff (RIP) - '92 Geo Metro LSi
90 day: 48.54 mpg (US)

'91 Miata - '91 Mazda Miata
90 day: 27.11 mpg (US)

'86 Fiero GT - '86 Pontiac Fiero GT

Purple Penny Pincher - '95 Pontiac Firefly Base
90 day: 43.68 mpg (US)

Jett-Black - '01 Volkswagen Jetta
90 day: 39.32 mpg (US)

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)
Thanks: 37
Thanked 227 Times in 167 Posts
Might have nothing to do with your gas. Repeat your experiment....at this point, it could just be a coincidence.
__________________

  Reply With Quote
The Following User Says Thank You to Stubby79 For This Useful Post:
Xist (12-08-2017)
Old 12-07-2017, 02:01 PM   #3 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: Earth
Posts: 4,829
Thanks: 200
Thanked 717 Times in 520 Posts
I just don't get this "top tier" marketing thing. My vehicles run just fine on whatever the cheapest stations on my route are selling.

PS: All of them well over 200K miles, too.
  Reply With Quote
Old 12-08-2017, 12:35 AM   #4 (permalink)
EcoModding Newb
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 3,001

Acura TSX - '06 Acura TSX
90 day: 31.25 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 79.06 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
Thanks: 1,156
Thanked 920 Times in 617 Posts
I've observed no difference between brands of gasoline. It's highly regulated with tight tolerances in the US. Most gasoline comes from the same regional refiners, so the difference would be in additives. How much detergent do you need? Maybe the legal minimum?

I've never had an issue with injectors, or detonation due to deposit buildup. Perhaps it was more an issue with carbureted engines that are poorly tuned.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following 2 Users Say Thank You to redpoint5 For This Useful Post:
roosterk0031 (12-08-2017), Xist (12-08-2017)
Old 12-08-2017, 10:05 AM   #5 (permalink)
Ecomuggler
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Mesa, AZ
Posts: 5,484

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 40.43 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 33.68 mpg (US)
Thanks: 3,288
Thanked 920 Times in 689 Posts
They also want you to purchase more expensive grades than your engine needs. That is almost never beneficial.
  Reply With Quote
Old 12-08-2017, 02:52 PM   #6 (permalink)
wdb
lurker's apprentice
 
Join Date: May 2008
Location: the Perimeter
Posts: 695

PlainJane - '12 Toyota Tacoma Base 4WD Access Cab
90 day: 20.98 mpg (US)
Thanks: 247
Thanked 142 Times in 108 Posts
I buy Sunoco whenever possible. They're locally headquartered, their gas has a good rep for quality (now passes Top Tier specs), and they don't buy crude from the middle east.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com