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Walmart (Murphy gas) is less than one mile from my home. Gas is cheaper than all other local stations. I fill my Corvette and Ram Hemi there all the time. Costco is 9 miles away. Traffic is bad and I have to wait in line for fuel like the 1970's at Costco. An occasional bottle of Techron in my car is easier than going to Costco. The Hemi doesn't care. Sticking to Walmart fuel.
We have two walmarts, near equal distance from the house, one has a Murphy, the other is actually a walmart gas station, not a Murphy, and it is much cheaper.
Just an FYI, from what I have found, the congestion at the pumps at the Costco on Alico have gotten better since they moved them further from the main entrance. The lines are always shorter at the Costco on Cypress and 41/865.(Tamiami).
Last edited by JHrinsin; Feb 23, 2026 at 08:26 AM.
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Never had a problem getting the Techron bottle to open the flap in the gas filler by just inserting the bottle neck in filler pipe. Just have to be careful when tipping the bottle up.
I don't get the supposed flex some people attempt when touting that they're using non-ethanol fuel. Ethanol not only helps to reduce cylinder temps, it also burns cleaner and will generally help keep the engine itself clean--not perfectly clean, but certainly a lot better than gasoline alone. For me, it isn't possible to get enough ethanol into my fuel. It's such a shame that E85 isn't sold at the pump anywhere near me.
On top of that, ethanol fuel makes substantially more power than gasoline. On my Audi--yes, I know it's a different platform, it makes it possible to avoid knock and advance timing enough to make a lot more power. On pump 93 (ethanol blend), I generally top out at around 600-650whp but on ethanol, I can push a few more psi and I can make around 750-800whp. With the larger turbo that I have now, pump E85 has plenty of headroom to make 1000whp but I couldn't get anywhere near that on pump 93 (ethanol blend), let alone a pure gasoline product.
More on to the point, Technron absolutely works but it also helps to use Top Tier fuel, as others mentioned. A lot of folks try to get the cheapest fuel possible without consideration to the lack of quality and detergents in the fuel itself.
Last edited by -ZEEOHSIX-; Feb 23, 2026 at 08:40 AM.
Luckily the Costco near me up in Ohio usually has the lowest prices and has the Top Tier rating, so that is where I try to always buy the 93 octane for the Corvette. Both daily drivers are flex fuel capable, so when they needed "cleaned out", I just fill them up with E85 and romp on them on the local highway on ramps several times.
I use the non-ethanol in all the power equipment, both 2 and 4 stroke and recommend that friends use it in their older toys / cars. Most of the time is 89 or 90 octane. Luckily living close to the Great Lakes there are enough stations that sell non ethanol that finding it is fairly easy.
Many of the “top-tier” stations in my rural area are low traffic, low volume, joints that I would never buy fuel from. I think this is a too nuanced and location and car-use specific question for imperatives, personally.
Last edited by bluehighwayflyer; Mar 10, 2026 at 04:19 AM.
Yes it can be more power especially in turbo and Supercharged applications with higher boost.
It also can burn cleaner.
The issues it makes are with older cars that were not designed to work with it can have major mechanical failure.
It also can absorb more moisture in car in storage.
Finally it is not as efficient as pure gas and it takes more Ethanol to make the same amount of power than less gas making the same amount.
Nothing wrong with it if it works for your vehicle and how you use it but many it can damage things. Plastic gas tanks are not just because they are cheaper to make they will not be affected by Ethanol
Most yard equipment companies tell you to avoid it as their engines are not able to deal with it and often the fuel will pick up moisture.
When racing and if you use Alcohol it can make a lot of power but after the last run you have to run pure gas through the system to prevent damage. you can let it sit. Carbs and fuel system damage is real.
Most new cars and deal with the E 85 or less but not much more.
About 15 years ago I performed a quick simple experiment comparing non-ethanol marine gas to regular gas in my Ram Hemi truck. After calculating the actual MPG on 87 octane fuel, I ran a full tank of ethanol free marine gas and did the same. I found I got 10% better mileage with non-ethanol fuel. They were adding 10% ethanol to regular gas. Personally, I would prefer getting 10% less fuel than adding ethanol to good gas. The non-ethanol did have a higher octane, but the Hemi doesn't really care. Today I only put marine gas in my car when it is extended storage for a few months. I use it in my boat and all small engines also to avoid fuel problems.
I used Techron and it fixed my '01 gauge. I imagine the car never had been treated before, so 25 years? Therefore, I consider using it every 3-5 tanks is way overkill. I would think once every 20 tanks would be plenty. I may be wrong, but when the sender is working great, I can't see buildup taking place so fast your need to clean it every three tanks, especially with the Top Tier package fuel.
About 15 years ago I performed a quick simple experiment comparing non-ethanol marine gas to regular gas in my Ram Hemi truck. After calculating the actual MPG on 87 octane fuel, I ran a full tank of ethanol free marine gas and did the same. I found I got 10% better mileage with non-ethanol fuel. They were adding 10% ethanol to regular gas. Personally, I would prefer getting 10% less fuel than adding ethanol to good gas. The non-ethanol did have a higher octane, but the Hemi doesn't really care. Today I only put marine gas in my car when it is extended storage for a few months. I use it in my boat and all small engines also to avoid fuel problems.
The only reason for Ethanol is for emission on street cars. My area has to have it in the winter and summer it goes to full gas. Also the politicians play games to increase Corn sales for farmers and corporations that farm.
But you are correct as a gallon on pure gas holds more energy than the blended. At ten percent it is not a lot but it is less.
I used Techron and it fixed my '01 gauge. I imagine the car never had been treated before, so 25 years? Therefore, I consider using it every 3-5 tanks is way overkill. I would think once every 20 tanks would be plenty. I may be wrong, but when the sender is working great, I can't see buildup taking place so fast your need to clean it every three tanks, especially with the Top Tier package fuel.
You only want to use it like 2 times with every change of oil. blow by with the cleaners can dilute or damage oil. If not having any issues once or twice a year and do it before you change oil.
This stuff is the kind of stuff a little goes a long way in concentrated form.
I usually only added fuel system cleaner, either Techron or Berryman's B12 (depending on vehicle and the need) a tankful or so before needing an oil change, for the potential oil contamination reason noted above.
I don't get the supposed flex some people attempt when touting that they're using non-ethanol fuel. Ethanol not only helps to reduce cylinder temps, it also burns cleaner and will generally help keep the engine itself clean--not perfectly clean, but certainly a lot better than gasoline alone. For me, it isn't possible to get enough ethanol into my fuel. It's such a shame that E85 isn't sold at the pump anywhere near me.
Maybe they're worried about MPG lol.. Both have their place. I picked up 15rwhp and 15rwtq with E85 on my LS3 Silverado build. I plan on doing the 2004 PCM Flex Fuel Setup on the C5 this year eventually and getting re-tuned... My vintage Honda motorcycle, my vintage Briggs and Stratton engines and anything with a carburetor gets the Non-Ethanol 90oct.