Which fuel do YOU use

[.Kevin.]

And why? I figured this thread has been made but whatever.


91 Octane Premium for me no other crap added.

[ROCKLANDTOYOTA]

BE PREPARED to be flamed....

[.Kevin.]

For remaking the thread? New members do register quite often atm it seems.

For using Premium? Lol, gas prices don't effect me.

[JumpmanYaris]

It's not that

[.Kevin.]

Oh crap.

[AppleJacks716]

And why? I figured this thread has been made but whatever.


91 Octane Premium for me no other crap added.

Not sure why you would use premium, Toyota doesn't call for it. I either stop at BP or Kwik Trip and use regular.

[2007yariz]

I use cheapest regular fuel i can find, why would u use premium?

[.Kevin.]

I just use it because I know it is 100 percent gasoline, it bugs me that the other gas has the other corn crap in it. It feels like the vehicle burns the premium quicker but thats about it.

[thepartsmancometh]

around here all gas is 10% ethanol (corn crap). In response to the question, we run regular in the Yaris (Shell if possible), and I run Shell V-Power in the WRX (and nothing else if I can help it)

[.Kevin.]

around here all gas is 10% ethanol (corn crap). In response to the question, we run regular in the Yaris (Shell if possible), and I run Shell V-Power in the WRX (and nothing else if I can help it)

Shell gas any good? I heard chevrons techron runs well, I'm one of those people who think premium is best no matter what lol.

Have you noticed the wrx will burn quality fuel quicker than ethanol fuel aswell?

[severous01]

ethanol burns at a 50% less ratio than gasoline. but, it will not detonate in the chamber. so, you're only 95% efficient running any gasoline other than 100% in the US.

second...the rating of octane is not how efficient it is but the burn rate or detonation prevention of the gasoline being used. 87 octane is 87% less likely to detonate at a specific compression than 91 octane which is 91% less likely to detonate. 91 octane burns slower allowing for higher compression or more advanced spark....hence the higher octane rating of performance cars and such. it has NOTHING to do with fuel economy...and actually 93 octane is cheaper to produce than 87.

[dingbat]

Lower octane burns faster and makes more torque. High perf. engines use higher octane because they have to in order to prevent pre-detonation of the charge. They are still running the lowest octane they can get away with. If you use higher octane than you need, the charge burns slower, so more of it is still burning on the exhaust stroke = more strain on the engine, less power at the wheels, and more of your charge wasted burning in the exhaust manifold.

[.Kevin.]

So 87 with ethanol is better?

[Red Horse]

Regular gas

[jonathankoji]

If you're in an area that has 10% ethanol in all gas grades, go with the cheapest gas.

Otherwise try and find a place that sells ethanol free gasoline and stick with that.

[.Kevin.]

If you're in an area that has 10% ethanol in all gas grades, go with the cheapest gas.

Otherwise try and find a place that sells ethanol free gasoline and stick with that.

Yeah that is precisely what I do, premium here at Super Store does not have ethanol.

+Super store sells gas frequently meaning their fuel is flushed alot and fresh.
+They give you about 10% back of what you spend in in-store funds. Good for deodorants and what not.

[rick996]

Shell gas any good? I heard chevrons techron runs well, I'm one of those people who think premium is best no matter what lol.

Have you noticed the wrx will burn quality fuel quicker than ethanol fuel aswell?

I use regular 87 10% ethanol (CT). Premium won't do anything extra for you. My fussiness is that I only use top tier gas which is either Shell or Mobil in my area. I also heard that Chevron is the best but it's not available here.

[Bluevitz-rs]

ethanol burns at a 50% less ratio than gasoline. but, it will not detonate in the chamber. so, you're only 95% efficient running any gasoline other than 100% in the US.

second...the rating of octane is not how efficient it is but the burn rate or detonation prevention of the gasoline being used. 87 octane is 87% less likely to detonate at a specific compression than 91 octane which is 91% less likely to detonate. 91 octane burns slower allowing for higher compression or more advanced spark....hence the higher octane rating of performance cars and such. it has NOTHING to do with fuel economy...and actually 93 octane is cheaper to produce than 87.

I think you logic is a little flawed. What if I'm using 110 octane race gas? It's 110% less likely to pre-detonate?

[rick996]

I think you logic is a little flawed. What if I'm using 110 octane race gas? It's 110% less likely to pre-detonate?

No, It can be compressed 110% before it detonates by compression. 87 octane can be compressed only 87% before it detonates by compression.

Ethanol has less BTUs (energy) per gallon than gas so it's less efficient :cry:.

Here's a chart of energy values for different gas formulations: http://en.wikipedia.org/wiki/Gasoline_gallon_equivalent

[Happy Little Pony]

A molecule of gasoline is a molecule of gasoline. I don't even trust one major brand over another. The last big gasoline contamination event I can remember happened with Shell. In whatever car you drive, just use whatever the owner's manual says. If the engine doesn't ping, it's fine.

[Shinare]

I use the cheapest gas I can find.

[cali yaris]

Here is a map of where you can get pure gas (no ethanol).


http://pure-gas.org/

[contraband831]

cheapest possible, if the car runs im good!..my brother in law pumps premium, but then again his mama pays for it hahaha

[rick996]

Here is a map of where you can get pure gas (no ethanol). http://pure-gas.org/

:eyebulge: I'd have to drive 135 miles. I don't think that would help my wallet.

[jambo101]

The engineers who designed the engine specify somewhere in the owners manual what type of fuel they designed the car to run on.
I'll follow their advice.

[mario98c]

I use the cheapest gas I can find.
Me too :biggrin::headbang:

[severous01]

I think you logic is a little flawed. What if I'm using 110 octane race gas? It's 110% less likely to pre-detonate?

yes that's it.

[thepartsmancometh]

Shell gas any good? I heard chevrons techron runs well, I'm one of those people who think premium is best no matter what lol.

Have you noticed the wrx will burn quality fuel quicker than ethanol fuel aswell?

All of our premium here is 10% ethanol so its the all the same. There is ONE sation I can by non-mixed prem from, but its a ton of money (like $.25 more per gallon)

[matthewai]

i mix all three to get the whole spectrum

[Betrivent]

on the topic of fuel.. do fuel system cleaners (the kind you dump into your tank) help at all? I didn't want to search it myself because I'd get a lot of unprofessional answers and bad opinions elsewhere.

[swidd]

I avoid old worn down gas stations with dirt and mud all over their pumps. Also, if I know a gas station has a gross restroom, I pass it for the pretty restrooms.

[frownonfun]

i mix all three to get the whole spectrum

lol, love it.

[ilikerice]

I think you logic is a little flawed. What if I'm using 110 octane race gas? It's 110% less likely to pre-detonate?

LOL.. i was thinking the same thing

[thebarber]

91 since im supercharged....but usually canadian tire for the CT money on my mastercard...

[Vioz]

i used to do premium all the time but been filling up with regular for the past 2 months no problems and no difference really, i think im getting 20 miles more a fill up it feels like, i usually get to the last bar at around 320 miles total on a full tank with the regular i been getting around 340-350 until it hits the last bar on a full tank of regular, plus these prices are expensive now so premium was no good for me no more.

[why?]

A molecule of gasoline is a molecule of gasoline. I don't even trust one major brand over another. The last big gasoline contamination event I can remember happened with Shell. In whatever car you drive, just use whatever the owner's manual says. If the engine doesn't ping, it's fine.

LOL.. i was thinking the same thing

lol the numbers are wrong, but the idea is correct.

The higher the octane the harder the fuel is to combust. The measurements are silly complicated and there are two scales, but that is the basic jist.

And while they say putting in higher octane gas on normal cars don't do anything, it is interesting to note all cars and manufacturers use 93 octane on the tests to get the numbers. Of course whether or not the difference is worth it is up to you. I don't think it is.

[thepartsmancometh]

my take (largely uneducated, but somewhat thought out):

higher octane gas only helps in a "non-premium required" car if the ECU is sophisticated enough to advance/retard the timing to compensate for knock. Most, if not all, modern cars can pull the timing (retard) when knock is detected. Many cars though will not advance the timing past a certain point; running a less knock prone fuel does not necessarily make more power because the engine cannot fully utilize the increase in detonation protection.

[willygoodness]

my take (largely uneducated, but somewhat thought out):

higher octane gas only helps in a "non-premium required" car if the ECU is sophisticated enough to advance/retard the timing to compensate for knock. Most, if not all, modern cars can pull the timing (retard) when knock is detected. Many cars though will not advance the timing past a certain point; running a less knock prone fuel does not necessarily make more power because the engine cannot fully utilize the increase in detonation protection.

i agree.

one of my previous cars would be 6seconds faster to 200k/hr if i used 100octane over 91 octane. it was crazy the difference it made. sure the fuel was 25c more a L.. but was lots more fun to drive hehe.

in my yaris 1.3L with 215/35/18's on.
regular 91octane i got 557km to 35.53L
regular 95' 615km to 37.35L
premuim 98 was a lil less cos of i was tired of only changing at 3-3500 rpms
with 95 octane and a k&n panel filter i got 632km to 36.8L

over here in Aus we have a 95octane with up to 10% ethonol in it and it doesn't give good fuel economy at all, i've also noticed the engine runs a bit hotter with the ethonal fuel.

woo.

[Red Horse]

I notice when I used 91 gas I get 41 mpg and the regular 87 is 37 mpg cause this last week end I drove from california to las vegas.

[ivanovvv86]

Most, if not all, modern cars can pull the timing (retard) when knock is detected. Many cars though will not advance the timing past a certain point; running a less knock prone fuel does not necessarily make more (http://googl.com) power because the engine cannot fully utilize the increase in detonation protection.

[nookandcrannycar]

I notice when I used 91 gas I get 41 mpg and the regular 87 is 37 mpg cause this last week end I drove from california to las vegas.

Did both examples in the comparison you are bringing up have no ethanol or if they both had ethanol in the gas was it the same percentage?

[nookandcrannycar]

I use 87 octane. I have used 85 and 86 octane in locations that have it instead of 87 octane....with no obvious adverse consequences. I do a gasbuddy.com search before getting gas and go to the cheapest station that is within a reasonable distance...and that is not a cash only station (Gotta get those air miles!)

[b20vteg]

costco 87 octane. getting about 42mpg.

[walt101786]

well i used to ask similar questions like ages ago lol, but after hearing everyone out and did my own testings here and there, which i finally came across with only top 3 gas station i would go....

First choice-76 gas station(might be pricey, but to me i feel my car a bit more well rounded with smoothness and performance)

Second Choice-Cheveron, i can feel the cleaning power for my 07 HB

Third Choice-Shell, its a smooth ride with shell.

mind me, i normally use the mid-grade on mine, but once in awhile i switch to the best octane due to it helps a little for cleaning power. and by the way 76 gas also gives me both smoothness and cleaning power which equals better performance, thats in my own opinions, some of us here might agree and some might not...but i wouldn't go anything cheaper like the BP gas station, aka Arco, cus for some reason my gas burns so freaking fast that a full tank will only last me like 4 days comparing using other better brands where they're only like 20-30cents higher.....and plus arco from what i heard will do damage on ur car as well....also for the record, i do both freeway/highway and streets....and i normally get 340-350 miles for my top 3 gas i normally uses and when i use arco i get around 300-315 miles for full tank...so there thats what i've know and like i said, some of us may agree what im saying and some may disagree...

hope this helps