For a few decades I've used Ethanol-Free gas. This week I saw an article about Top Tier gas, never knew about this.
Murphy Express is what I typically use as they have lower prices and EF 87 gas. Then, I read that while cheaper and EF is probably not a good choice since Murphy Express is not a Top Tier.
I'm not a chemical engineer. Looks like Old School stuff I focused on for engines from days gone by doesn't appear to apply to newer engines, and it is OK to use "Corn Squeezin's" in gas today. Seems MBTE (sp?) was squeezed out by corn and better overall. My Outback is a 2022.
One thing I heard about Ethanol probably 30 years ago was that Brazil uses Buffalo Grass that pound for pound produces like 400% more than Corn (a food product.) Is this accurate?


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🔺 🏪 - 🚘 - ⛽ - 🚘 : I wonder if most people really go to the gas station based off ratings or just what they socially like or the look appeal like. The bombardment of loyalty point clubs, & product sales, discounts & promotions probably makes people forget a lot about the actual quality of gasoline of comparison! But I think of fuel performance, food, convenience, & also what stations I'm spirited for! 🔺 Food is a big influence factor & most people won't divide gas quality, food & convenience. So gas markets who promote, need to focus on their retail store & customer appeal as well.
I guess Murphy Express & Murphy USA is the same for Mogul, Few Pics :
I may be an outlier here but I only use top tier gas and avoid non top tier gas all together. I was not familiar with top tier gas until I purchased a BMW 10 years ago and it was specifically mentioned by the service tech. Been doing that since then and never had any major service problems with any of my cars. Since then I pretty much stick with QT, Shell, or Chevron. Unfortunately, road trips in my car means an extra gas stop because I won’t get gas there lol
^ agreed. I have a BMW now and if you put anything lower than 92 in it the valves will start to ping. Odd, that one tank of premium will make it stop, and over the years I’ve owned several other “exotic” brands and never had that issue with them.
Thanks. I just never heard of this. My only gas reference was to avoid Ethanol, and that appears to be for older cars, not new - I'm behind on current events.
I logged around 38K road miles in 2025 (dog shows) in my 2022 Outback and did have a hard time finding non-Ethanol so I'd use a higher octane as type varied across the states.
I live at 6,800 ft above sea level, and 87 works good here. In the Midwestern and Eastern states, I go for 89 or 92.
Top Tier is new to me. And, I'll start using it going forward. "I didn't know what I didn't know."
As a side note: @Sinclair is a Top Tier. I had no idea.
I typically choose Chevron, when the opportunity allows it. My go to gas stations in the south have recently rebranded away from Chevron. I recently checked on recommended gas stations and Shell got my attention. My wife's 2002 Camry was the 1st family plush vehicle and of course it met an early demise due to bad gas choices.
I found that Top Tier gas sells for about the same price as the non Top Tier gas sold at convenience stores. I look for Valero, Shell, Exxon, Mobil and Sunoco with Valero being the least expensive.
🔺 Great info on this discussion!
Shell, Exxon, & Valero Work Well For Me! I would also consider Sunoco fuel coz they are the official fuel & sponsor of Nascar, even though they use a racecar version formula. Chevron, Citgo, Mobile & Sinclair all have good reputations & have been around for years! I'm sure Murphy Express/Murphy USA is good as they are around Wal-Mart! Additional Mix Info :
🔺 I just found out Chevron owns Texaco, & acquired them back in 2001. They both use the same fuel!
Your car needs a little Dino. 🦕
^ I did note Sinclair is a Top Tier.
My car has 6,000 miles on it. Its my6th car since 1985. I drove my past 2 a combined 425,000 miles. I put gas in it, 90% of the time from the off brand locally.
Top Tier gasoline is a standard established and maintained by a group of automakers (including BMW VW, Toyota, and others). So it’s a real thing. But many retailers sell the same “top tier” gasoline under different names. Ostensibly it is better for your car. If you have a vehicle labeled as “flex fuel” you should be able to use ethanol without any issues. Ethanol is typically much cheaper, but my experience with ethanol was really poor mileage (when I had to use it in a pinch after a hurricane). Best to use the fuel and octane recommended by your manufacturer for your specific vehicle - it’s not a conspiracy. My “premium fuel only” Lexus ran like shit on 87 octane.
🛣️ - 🚔 - ⛽ - 🚘 - 🛣️ | Texaco is one of the greatest companies I have ever heard about! A legend, classic & highly recognized, from Texas, way back in the early years! | ✅ ' Britannica Article @ :
🔺 Continued Article
@mogul1985 Does your 2022 Outback have the NA 2.5 or the 2.4 turbo? Either way, though, both of those engines use "direct injection" vs the older "port injection". And, obviously, one of them also brings a turbocharger into the equation... :)
While I don't really feel comfortable giving someone else "advice" on automotive matters, simply because I'm not a mechanic, automotive engineer, or anything else that would specifically qualify me to give such advice, I don't mind telling someone what I do personally...
And for me personally, I've used Top Tier gas almost exclusively since I started owning vehicles with direct injection and/or turbos. But I let others decide for themselves whether or not going Top Tier is the right move for them...
One thing that often seems to happen, though, is that a discussion about Top Tier gas can create some confusion about Top Tier vs. octane ratings. The FAQ from the Top Tier website can help clarify that...
Cheers!
^ My Outaback is a 2.5/no turbo. I'll read up on octane. When I drive outside of high elevation (I'm at 6,800'), I note octane levels go up at lower elevation. Thanks for the reading suggestion.
^ I can also add that for my vehicles, I always use the grade specified in my owner's manual, which for my particular vehicle happens to be 87 octane or higher. And then on top of that, I've chosen to use Top Tier gas as well. So in my case, I'm pumping 87 octane gas at a Top Tier station, assuming I have the option of getting Top Tier when and where I need to refuel!
🔺 Fun Additional Info : | Conoco & Sinclair Classic !
^ Nice. I knew about Texaco from way back, not the current state. And Sinclair, I had no idea @Sinclair was THIS OLD! Been doing strip clubs for a very long time!
Up 30 cents again WTF
🟡 ' Shell Station Fill Up Was Today! | 🔺 $40.00 For 10.233 Gallons
Of 87 Octane, 3.90/Gallon, Might Try V-Power Nitro Premium On The Next. Yes, Fuel Has Gone Up Again, But Trump Plans On Ending Iran Soon, The Prices Should Go Back Down! | 🔺 🟡 Shell Cheers!
You Can Re-Set Your Trip Odometer To See How Many Miles For The Fill Up! Mi Actual Fuel Pump Pics From Today!
Avoid buying gasoline from places like Murphy, Speedway, Casey's, Lukoil, Racetrac, Thornton's, etc when possible. Otherwise you may need to replace your catalytic convertor and/or oxygen sensors before hitting 175k miles.
I have Racetracs near me in FL (use very rarely), and Speedways near me in MA (use occasionally), what's wrong with them?
TOP TIER prohibits the use of organometallic additives that are known to damage emissions after treatment systems.
Deposits that form in engines and fuel delivery systems can cause performance issues such as reduced fuel economy, increased emissions and drivability problems such as hard starting, hesitation and stalling. TOP TIER Approved Gasoline uses additives tested and shown to minimize deposits.
Some of the leading automakers sponsor the TOP TIER Program and recommend its consistent use in vehicles to minimize carbon deposit buildup and keep engines operating as designed. The number of sponsors has grown over the years and now includes BMW, General Motors, Stellantis, Ford, Honda, Daimler Truck, Toyota, Volkswagen, Mercedes-Benz, International and Audi.
Which/what exactly is top tier?
^toptiergas.com
And those little bitches crying about gas prices today. Did you during Biden? Did you love when it was cheapo in January. Yeah, I bet not. And when they go down, assuming, will you applaud Trump? I bet not. Comrades, go back to worshiping your Hammer/Sickle alter.
🔺 It's amazing of who owns what name we actually see when we walk into a gas station. Their are some big names behind the sub names that are the one's you are actually getting your fuel/items from! Some just keep the sub-names for marketing purposes, which makes since, & they have the leverage to change the name if they want. Select random cases, BP Fuel & A Lil' Info, They Are Top Tier Rated As Well!
Cool beans, Mogul
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