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YOUR RESEARCHGasoline Gurus

Leading reported evidence

Run shell almost exclusively in my boxster (and turbo) until

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So, I ran Shell almost exclusively in my Boxster (and Turbo) until for cost reasons I switched to Chevon.

Gasoline Gurus
Frequently discussed work

Clean after 50k miles

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Suggestion

I'm sure that Shell and ARCO have different additive packages, and the ones for Shell might be marginally, or very slightly better than ARCO, but the combustibility won't be much different, and the energy content won't be much different, so the only thing that I would worry about is injector fouling which can be solved with a few cans of Ventil Sauber or have the injectors cleaned after 50k miles.

Gasoline Gurus
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Leading evidence: 'Run shell almost exclusively in my boxster (and turbo) until' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean after 50k miles' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use "lucas upper cylinder lubricant and cleaner"

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As suggested by my indie I used "Lucas Upper cylinder lubricant and cleaner" for the first time.

Gasoline Gurus

Use arco only a few times

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I've used Arco only a few times and then quit.

Gasoline Gurus

Use chevron

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Performed · outcome unconfirmed

I used chevron with techron for many years but since shell started the vpower nitro plus

Gasoline Gurus

Use chevron in all of them

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Performed · outcome unconfirmed

I used Chevron in all of them.

Gasoline Gurus
Frequently discussed actions (10)

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Clean after 50k miles

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Suggestion

I'm sure that Shell and ARCO have different additive packages, and the ones for Shell might be marginally, or very slightly better than ARCO, but the combustibility won't be much different, and the energy content won't be much different, so the only thing that I would worry about is injector fouling which can be solved with a few cans of Ventil Sauber or have the injectors cleaned after 50k miles.

Gasoline Gurus

Clean engine any more than

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Suggestion

Fwiw, running non ethanol fuel won't clean your engine any more than running E10.

Gasoline Gurus

Replace from the boxster engine

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Suggestion

Porsche techs I talked to about the change from the Boxster engine after switching to Chevon confirmed my experience was not unique.

Gasoline Gurus

Replace of heart -- or the station a

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Suggestion

'course, he must have had a change of heart -- or the station a change in managment -- for as I mentioned in an earlier post some time back the Shell station inexplicably raised its prices 10 and more cents per gallon above even other name brand stations within a block or less.

Gasoline Gurus

Replace oil

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Suggestion

I will change oil when the gas tank is empty.

Gasoline Gurus

Replace should be performed

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Suggestion

It is widely noted that oil change should be performed after using bottle or two of Techron additive.

Gasoline Gurus

Run 996

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Suggestion

Here in the UK we have 95 ron (Standard) & 97 ron (Super) unleaded, we are told to run the 996 on 97.

Gasoline Gurus

Run cleaner

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Suggestion

cheap gas wont have any detergents or additives, good gas like chevron, shell will have all the additives and make the car run cleaner.

Gasoline Gurus

Run e10

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Suggestion

Fwiw, running non ethanol fuel won't clean your engine any more than running E10.

Gasoline Gurus

Run lot of cars, trucks, boats, planes, bikes, etc

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Suggestion

I've been running a lot of cars, trucks, boats, planes, bikes, etc on bargain brands for decades and I've never been able to pin down any failure, or reduced service to strictly gasoline, except two bad loads I've gotten that were clearly contaminated.

Gasoline Gurus
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

30 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Here in sunny SoCal we can only get 91 premium. That said - what is the difference between, say Chevron at 3.19 a gal. and Arco (top tier, they say...) at 2.59? I've always been warned not to use Arco, but have on occasion to no ill effect. So what's the difference?

POST 2Original post

We get Chevron 94 octane with 0 ethanol, but at $1.40 a liter that's about $5.25 a gallon. Count your blessings - you are very lucky to be paying $3.19!

POST 3Original post

Metro Atlanta premium is 93 octane and occasionally I fill up with a tank of 90 octane non-ethanol just keep everything cleaned. I heard there's 100 octane somewhere in north Atlanta but I've yet to find it.

POST 4Original post

What I've noticed is that the identical delivery gas tanker trucks seem to service all the stations, including the Arco stations. I highly doubt that these tankers fill up separately at different places to load up before they depart to refill tanks. I will say that I've never seen a tanker refilling a Shell station so I don't know if they have separate tanker supply trucks. The only problem I've ever had with gas stations is when we lived in South Florida - we clogged up a fuel filter on my wife's BMW. And I am a gas price shopper - looking for non discount brands at the best price. Around here, we use Fred Meyer stations - which gives you a 10 cent/gallon discount for every $100 you spend in the store. Given our shopping patterns, I usually get $.20 off/gallon and that helps.

POST 5Original post

cheap gas wont have any detergents or additives, good gas like chevron, shell will have all the additives and make the car run cleaner. cheap gas will sludge up the engine, so later you can go pay to have the engine de gunked because it wont run right

POST 6Original post

Quotes source post: 13387045

You can try Arco I guess and see how the engine likes it. I've used Arco only a few times and then quit. The problem I had was the paying. I don't like using a debit card and even if I did not mind using it the fee is considerable. I prefer to use a credit card for my fuel purchases. OKB makes a good point regarding additives/detergents. I can tell you detergents make a heck of a difference. For a while some years back when gasoline prices really spiked and since I drive 60 miles per day for my work commute I started using discount gasoline. Not Arco other brands. After I moved and about the same time gas prices started coming down discount gasoline stations were no longer as attractive due to prices and convenience. While my commute was about the same I switched to using Shell gasoline. After a while I noticed a marginal converter didn't generate an error code as often. So that kind of hammered home the additive difference and maybe quality difference between discount and name brand gasolines. So, I ran Shell almost exclusively in my Boxster (and Turbo) until for cost reasons I switched to Chevon. The Shell station inexplicably raised its prices 10 cents or more per gallon over the prices charged by nearby Chevron and Exxon stations. After just a few tankfulls of Chevon gasoline the Boxster engine perked up some. The Techron in Cheron gasoline all the difference. I had been a Techron fan before this but only as a once in a great while treatment using a bottle of the stuff added to a tank of gasoline. My experience with using Chevon on a regular basis and then noting the improvement from the Boxster's engine converted me. Porsche techs I talked to about the change from the Boxster engine after switching to Chevon confirmed my experience was not unique. They all told me they use Chevon gasoline in their cars on a regular basis or use a tankful or two every once in a while for the detergent benefits. I suspect if you use Arco for a while and then switch to Chevron you'll notice the benefit of Chevon over Arco, but try it and see for yourself.

POST 7Original post

I'm sold on Techron. All of my previous cars and SUV's went well north of 200K miles without any problems. I used Chevron in all of them. I've heard rumor of a station just north of Van Nuys airport that has 94 octane. Have yet to find it but I'll keep looking

POST 8Original post

I saw the same gasoline truck by "Mohsen" deliver gasoline to Arco and Costco, probably to 76, too. It is widely noted that oil change should be performed after using bottle or two of Techron additive. Does the Techron in the Chevron gasoline contaminate the engine oil, too?

POST 9Original post

I used chevron with techron for many years but since shell started the vpower nitro plus I started using it, they developed it with ferrari http://www.shell.us/motorist/shell-f...-gasoline.html

POST 10Original post

Top tier rules (Mobil, Sunoco, Texaco, etc) will have hate best blend of additives to the base fuel stock. Fwiw, running non ethanol fuel won't clean your engine any more than running E10. All fuel sold in the US has a corrosion inhibitor and the top tier files will have a decent detergent add pack. Adding fuel treatments that claim tonight corrosion isnktagreat idea, as these components can affect the overall combustibility of the fuel. Even a little degradation can have long term effects such as carbon deposits. Buying cheap gas is a bad idea. E10 fuel is designed to be used within30 days or so of blending. It begins to degrade after that point as the light ends evaporate. Leaving deposits behind. Most traditionalstabilizerswill also decrease fuel combustibility.

POST 11Original post

Quotes source post: 13389143

Here in the UK we have 95 ron (Standard) & 97 ron (Super) unleaded, we are told to run the 996 on 97. Is this a different rating to your 91 rating? it's about 1.79$ per litre O_Sr

POST 12Original post

Quotes source post: 13389418

Different in the US. https://en.wikipedia.org/wiki/Octane_rating

POST 14Original post

Quotes source post: 13389434

Top tier. One of the best values out there IMO. Damn wtf, got suckered into a gas thread. But it is Monday...

POST 15Original post

Does anybody know about the gasoline provided a Kroger grocery store stations? They have a discount offered on gas based on amount spent on groceries, so occasionally seeing $1 off per gallon is nice! The logo looks like Tom Thumb.

POST 16Original post

Quotes source post: 13389053

Probably. But I adhere to a 5K mile oil/filter service no matter which brand of gasoline I use. Recently I used two bottles -- one at a time per tank of fuel -- in my Turbo and timed the use to be just before its 5K mile oil/filter service.

POST 17Original post

Quotes source post: 13390566

Thats what I do, too. As suggested by my indie I used "Lucas Upper cylinder lubricant and cleaner" for the first time. As expected, no miracles happened but I have the feeling that the car responds better to the accelerator. This is an anecdotal observation, not stated as a fact. I will change oil when the gas tank is empty.

POST 18Original post

I often get VONS/Safeway gas and have had no issues They also do the up to $1.00 per gallon discount Also use COSTCO gas, which from what I have read, is as good as anything else out there

POST 19Original post

Quotes source post: 13389758

Re COSTCO... No, it isn't really top tier, as far as I can tell. One of my clients (Mohsen, the same one that DrBrain mentions. Mohsen is a great guy. He lives not far from me here in Oceanside. One of his sons recently bought a Panamera) has the contract to deliver fuel to our local Costco, Shell, and many other gas stations (including three of his own family-branded gas stations). I had a pretty good conversation with him about this. All of the gasoline comes from the same source. Then, brand-specific additive packages are added. He told me that Costco uses a package that is very light on the additives. I nearly always use ARCO, and have in all of my cars. Never had any problem of gunking up or any other issue that one would associate with bad gas. I would think that if cars were dropping like flies due to ARCO gas that this would be a massive news story and class-action law suit that many attorney would be on in a flash. The only place I have ever heard of bad comments regarding ARCO is on car forums.

POST 20Original post

Quotes source post: 13391159

This is very interesting, considering that Costco claims it has 10x (or similar) the additives when compared to other brands and top tier status. Costco just lost a gasoline customer.

POST 21Original post

I did find this comment, that I'm sure everyone will find to be most helpful:

POST 23Original post

Bought my GTI two years ago. Uniquely got to talking with deutches tech guys from the factory who were giving the dealer the hard eye. New cars only allowed to leave the lot having been filled up w Chevron. Ever since then Chevron it is.

POST 24Original post

No Chevron around here I tend to fill at a BP on the way home from work because it's convenient and cheap. But having read this thread I've ordered a couple of bottles of Techron just to jump on the bandwagon

POST 25Original post

Quotes source post: 13391159

[Image-only post; no author-written text. Original image references:] https://rennlist.com/forums/images/smilies/popcorn.gif

POST 26Original post

I am all Chevron all the time, Porsche, AMG, classic muscle cars, Denali, Zero turn, mowers and tractors, because the manual says so on the expensive stuff.

POST 27Original post

Quotes source post: 13387713

The place is on hwy 41 just south of cartersville and near emerson. I live right buy there.

POST 28Original post

Quotes source post: 13392904

While some Chevron stations are expensive, priced above "market" others are very competitive on price compared to other stations and I can save money buying Chevron vs. some other brand. My unscientific observation is -- at least this is true in my area of CA -- is brand name stations appear to have lower prices with in at least one case a Safeway store with a gas station nearby. In fact the Shell station operator told me he prices his gasoline based on the Safeway price, trying to keep his prices down as much as he can to avoid losing more business to Safeway. 'course, he must have had a change of heart -- or the station a change in managment -- for as I mentioned in an earlier post some time back the Shell station inexplicably raised its prices 10 and more cents per gallon above even other name brand stations within a block or less. The Safeway station is several blocks away. My commute often has me passing Chevron stations with lower prices than the one I usually shop at near my house. If a car needs gas and I have the time I'll pull in and fill up and save even more money. With the variation in prices with some stations charging 10, 20 even 30 cents more per gallon, and the high priced and low priced stations sometimes next door to each other, I'm amazed at some customers that appear to not be paying any real attention to the price of gasoline.

POST 29Original post

IMNSHO the vast majority of claims about super gasoline additives is marketing. I've been running a lot of cars, trucks, boats, planes, bikes, etc on bargain brands for decades and I've never been able to pin down any failure, or reduced service to strictly gasoline, except two bad loads I've gotten that were clearly contaminated. One was on vacation in a massive motorhome that would stall after buying 55 gal of gas at a small out of the way station. I'm certain it was stale, and had water. The other time I filled up a Fiat with Mobil prem and got mostly water. Both times I went back and complained and got a refund. There were other people complaining as well. I'm sure that Shell and ARCO have different additive packages, and the ones for Shell might be marginally, or very slightly better than ARCO, but the combustibility won't be much different, and the energy content won't be much different, so the only thing that I would worry about is injector fouling which can be solved with a few cans of Ventil Sauber or have the injectors cleaned after 50k miles. meh

POST 30Original post

Chevron for my 2000 996 and 2013 MB 300. No performance issues with either car.

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