87 octane only fuel allowed?

Read again/more carefully. I think every Toyota made in the last 10 years allows up to 15% ethanol in the fuel supply.

 

Yep, it's well covered in many other threads. The bottom line is that all the same fuels are fine that version of the car, it has a system to manage fuel aging but it doesn't hurt if you plan 'portions' relative to your actual consumption.

 

I run 92 or 93 E0 gasoline somewhere between 1/4 to 1/2 a tank as a norm for local driving.

If I go on a long trip I fill up with cheap/costco 87 E10, then I try to come back home with very little E10 fuel.

Then I repeat this process...



Rob43

 

There are no 87 E0 gas in my area. Until very recent, there were no E0 gas, but last year a newly opened CitGo gas station within 20 miles started carrying 93 E0 gas at pump. I go there to buy E0 pure gas, not for my PRIME, but for my lawnmower, snowblower, generator, and other small engine yard tools.

 

Yep, gotta use the "good stuff" in the lawn equipment !



Rob43

 

Never heard a Prime called that

 

Look at the gas cap, it should say how much ethanol content is allowed in this car.

I thought that it was a federal requirement for all normal consumer vehicles made after some long ago date to be able to tolerate E10. After all, many localities were forced to use E10. And E15 is now approved too.

 

If it's really in there for a year, I would think you would want to use some kind of fuel stabilizer, especially if you are filling up with something other than E0.

How Long Does Gasoline Last? Solved! | Bob Vila

 

Yep.

*************************

"Even in proper storage 87 octane gas can start to degrade in 3 months, 93 octane fuel should last closer to 9 months before degradation is noticeable. Keep in mind that 93 octane fuels are still susceptible to octane loss and vapor pressure decreases due to butane evaporation."
Octane Stability: High Octane vs Low Octane Fuels - Sunoco


Rob43

 

See the manual, or (as @fuzzy1 said) just open the fuel door for ethanol answers.

My tank depressurizes faster than the message can appear on the dash. Also, fyi,

You need to reread that. It's an emergency release for the charging port door. Not for the EVSE cable.

There's always stuff to learn about this car. This one might be too much at one bite, but check out the Weber Auto videos on YouTube.

 

It is 87 octane MINIMUM. Nothing wrong with higher octane, just not needed.

IF you are a person who's driving pattern means that you might not put a whole tankful into it in a YEAR,
I think I would look for E0 gas (regardless of the octane) AND put in some stabilizer too.

IF you will go through a tank every 3 months or so, I wouldn't worry about it in the least.

Neither of those things might be strictly necessary but it won't hurt either.

 

Here in Utah Costco only sells 85 octane and 91 octane, no mid grade. I’ve been running 85 octane in my prime and also my 2012 Prius V. No problems.

 

Are you in a "high elevation" area ?
It is typical to sell lower octane fuels in the "mountains"......because higher octane is not needed there.

 

I think @sam spade 2 has it. I notice when we're in CO that the octane is lower engines need less anti-knock at higher elevations.

 

Yes, we are at 4300 feet. I had already figured that’s why they’re running a lower octane at Costco.
Curious if anyone is from the Denver area. What octane are they selling there?

 

Is the lower octane specific to Costco? I suspect not, but that it is common to the region.

I've seen the lower octane in Montana and Wyoming, as well as Utah and Colorado. And it is sold in a few other places too. It seems common at 4000+ feet when far enough away (by old era car fuel ranges) from lower elevations. Though I believe I've seen low octane (maybe 85.5 or 86) down at about 3000 feet too.

 

The problem with the Costco‘s here in Utah is they only have the 85 and the 91 octane. They do not sell a midgrade. All the other gas stations do sell a midgrade. Usually 87 octane.

 

I don't recall Costcos in any state (Western U.S. and Canada only, I haven't been to any elsewhere) as selling a midgrade. Just Regular and Premium, at whatever octanes are customary their the particular area/elevation.