I've always run 87 octane, 89 and higher is supposed to run better and might slightly improve mileage, but nothing dramatic. Higher octane helps some engines run better but mine has always run fine on 87.

 

age old question about gas octane... a higher octane does not mean more performance. It just means the gas/air mixture can be compressed higher before it ignites, thus giving more power output. But the engine has to be designed for a higher compression in order to use it. For example, if you used 87 in an engine designed to run (and compress) on 91/93, then you would get pre-detonation and pinging sounds from the engine. stick with 87, unless you want to give more $$$ to oil companies.

 

TYPE of gas? Unleaded gasoline.

Octane? 87.

Anything over 87 octane is a waste of money. There is nothing to gain by using a higher octane in the Camry, it wasn't designed for it.

 

I always use 87 octane on my 4cyl and always will.

 

87 in the Camry and used 93 for the "toy" (1967 Coronet 500)

 

I always use 87 cuz its the cheapest, even in my old '90 V6 LE I put 87 in it even though it recommend higher octane. I look at it this way if 87 octane could really ruin cars then the gas companies couldn't sell the stuff.

 

I used Chevron 93 religiously for a while, then I tried Texaco when they started using techron and it was pretty good.Recently I almost let my car run out of gas and I stopped at a B.P. and i liked it so much I kept using it.93 is less prone to premature detonation and believe me or not,I can hear a difference.

 

and i liked it so much I kept using it.93 is less prone to premature detonation and believe me or not,I can hear a difference.

Not.

 

The monthly gas thread...........

 

87

 

Corn.

 

:lol::lol:

 

I only use 100 octane racing fuel because for every extra point in the octane rating, you gain 5HP.

 

hahaha that made me laugh...

reminded me of the ricer joke, every sticker you have, you gain 5hp lolz

 

diesel

 

I only use QT Mid Grade 89 octane.

 

how does QT clean your engine...i wish we had them in FL. I only sitck to B.P. 87. I might use 93 right after an oil change tho.

 

RP-1 Kerosene.

 

i use my own flatulence to power my car. i modified my drivers seat to filter my flatulence into a usable energy source. the passenger and rear seats are backups as they have a holding chamber that collects any flatulence when there is someone present on the seat. its the energy source of tomorrow... today.

 

Ah hahaha :clap: This is turning in a pretty fun thread. Sorry to the OP, but I hope we all answered your question.

 

I use 87-89(which ever I can afford). Man east coast gets 93oct while the highest here is 91. =/

 

Some of the gas station around here offer 87, 89, 91, and 93. I never could see spending $0.10 more per gallon on 89 vs 87 when it's only $0.10 more from 89 to 93.

 

10% ethanol, recenty mandated by my state. (87 octane -- I can RTFM.)

So, does anyone have any insight on how much 10% ethanol might decrease MPG? One percent? More? That's something I should try to figure out.....

 

10% ethanol, recenty mandated by my state. (87 octane -- I can RTFM.)

So, does anyone have any insight on how much 10% ethanol might decrease MPG? One percent? More? That's something I should try to figure out.....

Government says 2-3% (Actual performance may vary depending on the vehicle) but users say 10-20% reduction in mileage with 10% ethanol.

A story in USA Today told its millions of readers that the E85 mileage penalty is 28%. That means your 25 mpg car now only gets 18 mpg if you flex to E85.

Your socialist state will collect that much more gas tax from you.

Did the price per gallon drop?

 

[quote

I only use QT Mid Grade 89 octane.[/quote]
i notice TRD doesnt rip on every decision you make.you dont use exactly the same fuel he does but he doesnt pounce and say youre wrong.you guys must be pals:naughty:

 

http://www.schenectadyny.info/cgi-bin/forum/Blah.pl?m-1202042577/



Here you can see the differences in government testing between Gas and E85 fueled identical cars:

http://www.fueleconomy.gov/feg/byfueltype.htm

City: 25-31% reduction in mileage with E85
Hwy: 26-37% reduction with E85

so you use more petroleum gasoline with E85 than straight gasoline!!!!!!

 

Here you can see the differences in government testing between Gas and E85 fueled identical cars:

City: 25-31% reduction in mileage with E85
Hwy: 26-37% reduction with E85

Ahh, that's what you're talking about. E85 -- 85% ethanol.

I'm talking about 10% ethanol -- only 10%.

 

i run standard unleaded 87 octane in my camry

 

"According to the Renewable Fuels Association, the trade association for the U.S. ethanol industry, fuel injected cars may experience a decrease of approximately 2 percent in fuel economy using E10."

 

Here's a quick note I found:

http://www.roadandtrack.com/article.asp?section_id=18&article_id=3700

Quoting:

Ethanol has less energy than gasoline (about 68 percent of gasoline’s calorific value, according to my Internal Combustion Engine Handbook). And our cars’ engines are, in fact, heat engines exploiting this calorific content. Thus, as a reasonably valid approximation, a tankful of straight ethanol would get you about 68 percent as far as one of gasoline. In fact, given a real-world flex-fuel car capable of using both, I suspect its performance would be compromised on either.

Right now, plenty of places have E10; let’s do its calculation: E10 is 90-percent gasoline with a 10-percent dose of ethanol. So its calorific breakdown is 0.9 gasoline’s and 0.1 ethanol’s. That is, 0.9 G + 0.1 (0.68 G), or (0.9 + 0.068) G, or about 0.97 gasoline’s calorific content. So, more or less, you’d expect to travel about 97 percent the distance, a reduction of about 3 percent. That is, E10 users experience only a small hit, and not one easy to identify.

By contrast, what about E85, to some, tomorrow’s fuel de jour? This fuel is 15-percent gasoline and 85-percent ethanol. Thus its calorific breakdown is 0.15 G + 0.85 (0.68 G), or 0.15 G + 0.578 G, or about 73 percent gasoline’s calorific content. That is, E85 users could expect a drop of about 27 percent in fuel economy.

For instance, suppose your nice frugal car gets 30.0 mpg on gasoline. You’ll likely not notice the difference at 29.1 mpg on E10. But what about E85’s 21.9 mpg?

End quote. Sounds like pretty realistic reasoning to me....