Best type of gas for Prime?

No it won't. Higher octane does NOT equate to more power in the gas; sometimes exactly the opposite.

Your Prius is NOT a BMW or Lexus.
It is not a high compression engine and will NOT change it's operating characteristics when high octane fuel is present.
It just won't.

And.....miles per tank is not a valid measure of anything because there are too many variables. Exactly when each pump nozzle clicks off is just one.

 

Ethanol or octane aren’t they the same ?

 

What compression Prius engine had? How Prius compression vs standard ice engines? True race car runs on higher compression, but standard car they normally on 180 psi to 210 psi. So therefore prius is consider high compression car?

 

I'm outa here, lol.

 

You guys are as funning as those clowns at the bimmer forums I was at for 16 years

 

Free gas. Like chargers.

Bob Wilson

 

It is interesting that you achieved this because better mileage frequently shows-up as a commonly debunked myth. Most reports that do claim benefit I've seen indicate 5% at most to be gained with higher octane.

I've often suspected the truth was somewhere in the middle and could depend on driving style, etc. Regardless, premium is at least 10% more expensive and even your data doesn't show more than 10% benefit. Doesn't look like a win...

 

I believe marine equipment often calls for ethanol free...Maybe the proximity to Lake Ontario drives availability?

 

True It lost at economically but better gasoline burns better it will extends the life of the engine, fuel injector, spark plugs and performance over time.

 

Good points. We all have those things that make us feel like we're pampering our cars. From new wheels to rust inhibitors to premium gas, here's to hoping the car continues to be a joy for a long time.

 

I stick to Top Tier brands myself.

 

In my 2012 Prius v, I use Costco gas. Here in UT they only sale 85 and 91 octane. I mainly use the 85 octane. Tried the 91 octane once. It made very little difference, if anything my mileage was a little less. We can get away with using 85 octane here in Utah because of our higher altitude.

One day in the future, I will finally have to add some gas to my Prime. Over 1200 miles and still over 3/4 original gas from when the car was purchased. Have I said lately how much I love my Prime .

 

NO.
Maybe someone else has the time to try and explain the difference.
I don't.
Maybe YOU should look up both terms and find out for yourself ???

 

Maybe. But a higher octane rating is NOT and indication of "better" gas.

 

Smart man! Every car forum I've even been in has this octane subject come up multiple times and always turns into a 80+ page thread of yes it is, no it isn't. Some old ingrained beliefs never die.

 

One point to be made, is, it all depends what Country you are in.
Years ago in the USA the gasoline varied quite a lot because EPA was not mandating the recipe. Back then, the oil companies typically did indeed make the higher grades better quality (more additives etc). Then EPA took control and basically mandated gaso as a commodity that EPA controlled the recipe, and Regular quality was essentially mandated to be tops. At that point gaso essentially became a commodity with not much freedom for U.S. oil companies to market Premium over Regular.

If you want to treat your car to the best, you really need top select TopTierGas.com brands, not higher octane in the USA.

 

The manual says 87 is fine. Up here in Quebec 87 and 89 can contain up to 10% ethanol. 91 is the only grade without ethanol.
I use 91 because I believe that in the long run the engine will stay clean longer. I dont care about the cost .. i fill up only once per month in winter and i can last up to 3 months without going to the gas station when the outside temp stay above 10 C. In worst case scenario , the cost is 45$ cad per month ..so .... 91

 

Yes Canada is different rules re: ethanol, so you have some opportunities for E0 that many in USA do not have. Your E0 is probably better MPG too, since I am not aware you have RFG mandate, which basically limits the energy content..

 

I would pay extra for E0...I wish it was more available.

 

Many boats spend many weeks or months sitting with gasoline in the tanks in a high humidity environment. Even stabilizer in the gas can't always handle the conditions. A friend had two year old green glop taken out of his boat tanks...it used to be stabilized gas. There are limits.

On the other hand, millions of drivers go hundreds of millions of miles using 10% ethanol gasoline with no problems whatsoever. The fear ginned up by the anti-ethanol crowd is impressive.