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So you're saying that all the brands that claim to have things in their gas that other brands do not are lying? All those TV ads that say "Buy our gas. We have superduperclean in it" are false?
As far as the bolded part goes, YES, they are "lying", all gas has cleaners in it, they just call it different things.
dyes ( product colour for safety or regulatory purposes ).
Gasoline manufacturers now routinely use additives that prevent IVD and also maintain the cleanliness of injectors. These usually include a surfactant and light oil to maintain the wetting of important surfaces.
Texaco demonstrated that a well-formulated package could improve fuel economy, reduce NOx emissions, and restore engine performance because, as well as the traditional liquid-phase deposit removal, some additives can work in the vapour phase to remove existing engine deposits without adversely affecting performance ( as happens when water is poured into a running engine to remove carbon deposits:-) Most suppliers of quality gasolines will formulate similar additives into their products, and cheaper lines are less like to have such additives added. As different brands use different additives and oxygenates, it is probable that important parameters, such as octane distribution, are different, even though the pump octane ratings are the same.
So, if you know your car is well-tuned, and in good condition, but the driveability is pathetic on the correct octane, try another brand. Remember that the composition will change with the season, so if you lose driveability, try yet another brand. As various Clean Air Act changes are introduced over the next few years, gasoline will continue to change.
Nah, look at the location. Well, okay, it's definitely expensive gas. But the numbers are different in Europe.
Octane numbers are different than in the US. At 98 Octane by US standards your MPG would drop dramatically. There may be some racing engines that requrie Octane that high.
Aside from raccing engines and the motorcycle someone mentioned earlier in this post. I have never heard of any car that requries higher than 91 octane. I have never understood what some statoins sell 93 or even 96 Octane. What is it for? It must just be an appeal to those who think Octane realted to power or better engine cleaning. I did one meet a guy who said he runs a tankful of high octane through his car once in a while to "clean the engine out" Actually it does the opposite. High octane fuel has more ethanol. Ethanol turns to varnish. It is more likely to gunk up your engine than lower octane fuel.
Lucky for gas staitions most people do not understand that higher octane is ony for the very few cars that actaully require high octane fuel. Because of the common imisunderstanding, many many people buy it thinking they will get better gas mileage (wrong - worse MPG), more power, or a cleaner burn. It does none of those things and the oopsie of some. Simply put higher octane gas is required for high performance engines that have a high compression ratio. It will nto make a regaulr car perform better in any way.
One thing that is interesting is Mazda's "skyactive" engine is high compression but runs on low octane gasoline or so I hear. I am curious as to how that is done without making the mixture super rich.
I don't think they sell 98 octane gas here, normal high-octane is 93, I've seen 94, maybe 95 in a few stations. My car is supposed to have 91.
Your gas mileage is probably higher than mine, so the extra cost cancels out. What gas mileage (or L/km) does your car normally give?
98 Octane gas sold in France would be listed as 93-94 in the US, the usual "premium" here.
95 Octane gas sold in France would be listed as 90-91 in the US, what my car wants but they don't sell it.
90-91 in the US, what my car wants but they don't sell it.
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The do nto sell 91 octane in Massachussetts? Here (Michigan) that is pretty much all they sell, a few offer 93 or 96, but most offer 87, 89, and 91. Does it differ from State to state?
The do nto sell 91 octane in Massachussetts? Here (Michigan) that is pretty much all they sell, a few offer 93 or 96, but most offer 87, 89, and 91. Does it differ from State to state?
The usual is 87, 89, and 93. I see 91 occasionally. I think it's the same in CT and NY, and possibly VT & NH. Not sure though.
I use 87..As for brand...we have very few "brand name" gas stations in my area. The only one I can think of that I use is Hess. We have one Shell and one Exxon in town (30,000 pop) and they are usually 5-10 cents higher then Turkey Hill/Sheetz/Rutters of which there are several of.
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But the numbers are different in Europe.
