Any difference between 91 and 94 Octane?
#51
Re: Any difference between 91 and 94 Octane?
i dunno when i use 94 i notice more power and better idle in my car, i had a cbr125r and when i used regular gas it ran like ****, 91 was better but when i ran 94 with nitrogen additive i noticed it ran waaaaaaaaaaaaaaaay better
#54
Re: Any difference between 91 and 94 Octane?
that was prob 98 RON
just like in europe it's 95 & 98.. which is like 90-91 93-94
so yeah the cheap gas is better then our 87.. but the 98 that people see is really 93-94 octane
#55
Re: Any difference between 91 and 94 Octane?
94 = faster, even if you're not tuned for it. Your Audi ECU can take advantage of a little more octane. Reality is that it's ideally running 92-93 anyway. 91 is ****.
#56
Re: Any difference between 91 and 94 Octane?
#57
Re: Any difference between 91 and 94 Octane?
I'm not sure if you're making this statement with some implicit conditions in mind, but it's incorrect as is. As long as the ratings are accurate, with the correct tuning you will always be able to make more power on the higher-octane rated fuel. If you meant for a stock vehicle, only then is your statement correct.
#58
Re: Any difference between 91 and 94 Octane?
The only thing you will gain by using a higher octane fuel than is required is a bigger dent in your wallet.
You will definitely not receive higher mileage figures from using it.
It will not clean your engine any better than the required octane rated fuel.
Gasoline is essentially a shared commodity, often stored in common containers until it is purchased by a major retailer. After that, the retailer treats the gas with a specific additive, thereby giving the fuel its brand identity. But are these additives just a dosage of marketing hype?
Top Tier gasoline was developed in 2004 to go beyond the minimum standard for detergent additives to better protect increasingly sophisticated engines from carbon buildup and deposits on the intake valves—which can result in a rough idle, acceleration hesitation, knocking/pinging, and reduced fuel economy. Over the past 20 years, engines have become far more precise, operating under tighter tolerances and at higher compression ratios, while targeting cleaner emissions and improved fuel economy. To achieve these goals, eight automakers—Audi, BMW, Fiat Chrysler Automobiles, General Motors, Honda, Mercedes-Benz, Toyota, and Volkswagen—have united in support of Top Tier gas, specifically recommending it to their owners with the goal of preserving their engines’ original performance and emissions over time.
When a participating retailer sells Top Tier fuel, all octane grades from regular to premium gasoline and diesel must adhere to the Top Tier standards. So, it is not necessary for drivers to upgrade to premium to gain the cleansing benefits.
Top Tier Retailers76, Aloha Petroleum, Amoco, ARCO, Beacon, BP, Breakaway, Break Time, Cenex, Chevron, CITGO, Conoco, Costco, CountryMark, Diamond Shamrock, Entec, Esso, Express Mart, Exxon, Fast Fuel, HFN, Hele, Holiday, Kwik Star, Irving, Kirkland Signature, Kwik Star, Kwik Trip, Marathon, Metro Petro, MFA, Mobil, Ohana Fuels, Phillips 66, PUMA, QT, Quik Trip, Road Ranger, Shamrock, Shell, Sinclair, Sunoco, SuperAmerica, SuperFuels, Texaco, Valero, Value America, Wow, and Win Win.
Unless you really enjoy throwing away your money, don’t buy higher octane than the manufacturer recommends. That applies to both new and older vehicles.
Last edited by Tmurphy99; 02-08-2022 at 08:35 AM.
#59
Re: Any difference between 91 and 94 Octane?
Last edited by sergioregraguy; 06-30-2023 at 12:31 PM.
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