Don't know if this has been discus before. Is Non-oxygenated gasoline better for our cars, i'm curious because a friend told me about it. There's a BP gas station four miles from me that offers non-oxy gas....should i pump this gas instead. They are rated at 92 octane. From what i was told this is just pure gasoline with no ethanol or additives......some one please clarify.

I went ahead an tried it.....haven't pushed the car yet. Check out the sign. "Ethanol free premium....for your toys"

 

anyone with any experience???

 

nobody knows or heard of Non-oxygenated premium gasoline?????

 

Whats the point of non-oxygenated gas? It never occured to me that gasoline would or would not be oxygenated. Other than the well known fact that oxygen supports combustion, what is the advantage of non-oxygenated gasoline.
Other than my high school Chemistry, this would make the BP a little more dense and slightly heavier (I think).
BP should have an explanation as to why they think their gasoline is better. Anyone?

 

i dont see how this is beneficial. correct me if i understood wrong, but i was reading about gasolines in howstuffworks.com and my understanding is that stuff like MTBE and Ethanol are added to the gasoline to boost octane and to reduce the amount of unburned hydrocarbons and carbon monoxides... which means that it makes burning that gasoline more efficient... why would you wanna replace it with somethine less efficient?

 

Oxygenated Gas is for smog reasons. Less pollution than NONoxygenated.

Nonoxy is also called "conventional gas"

What's the price and octane rating??

 

Because more efficient doesn't necessarily mean more power

Hybrids are more efficient, if you're into efficiency over performance, go get one of those

 

That was what I was about to say

 

The conventional gas has additives, but no alcohol. Many large cities require seasonal gas/ethanol mix for summer months. The rest of the year is conventional gas (non-oxygenated).
The S2000 is designed to run on conventional gasoline, but up to a 10% mix of ethanol may be used. Don't use methanol though. It's all spelled out in your owners manual.

 

That sign in the picture looks like something the station operator and not BP put out. However, there is some truth to being better off without ethanol in one's gasoline, although it is a matter of opinion.

There are two general types of gasoline in use in the U.S. now and about 30-some variants due to local conditions (RVP specs). In the pollution areas, the EPA requires what is known as Reformulated Gasoline (RFG), which contains the oxygenates- be it MTBE (now banned most places) or ethanol at 5.7%, 7.7%, or a max of 10%. In the rest of the U.S., there is conventional gasoline which doesn't usually contain ethanol.

I won't bash ethanol. I'll just say that I would rather not be using it if given the choice. You can find plenty of information on the drawbacks of ethanol on the internet.

Ethanol does have a very high octane rating (good) but has a Reid Vapor Pressure (RVP) that is also high and violates most local pollution regulations and in extreme conditions can affect car drivability. To add ethanol to gasoline rather than MTBE, refiners have to make their RFG with a lot of the normal components removed (called RBOB) to compensate for the higher RVP that the ethanol blending causes. Conventional gasoline, by contrast, does not have these natural gasoline components removed or the addition of oxygenates. However, one of the mid-western states that produces ethanol (I believe Iowa) requires that all gasoline sold in the state contain 10% ethanol.