What type of gas do you pump?

[southside]

Many people say dont pump anything but premium.Other people say whatevers cheapest.Alot of people say you can feel the difference between 87,89,93.I was just wondering what you guys and girls thought and what you think?

[d_day87]

i run premium just for the octane rating.

[OneSlow5pt0]

87,only get 15mpg...so every penny helps

[southside]

87,only get 15mpg...so every penny helps

What you drive ?

[OneSlow5pt0]

What you drive ?

camaro

[BKgen®]

87, every penny helps

x2

[gforce23]

I pump all 3 depending on what car I drive.
87 in Accord - 25mpg
89 in Miata - 28mpg
93 in CooperS - 23mpg
93 in gf's (if that counts) Sidewalk - 27mpg
Million octane in gf herself

[southside]

Can you notice a difference from when you pump 87 and 93

[WhiteAccord]

87 No Nitrous, 93 Nitrous.

[Z32redondo]

93...cause the stickers says to. Its all about how the fuel ignites.

[gforce23]

Umm, if you are explicitly comparing 93 in the MINI and 87 in the Accord, then yeah, there's a world of difference primarily because the Cooper has 25-30ish more whp and is much lighter. I've filled 89 and even 93 in my Accord dozens of times but there is no perceptible increase in perf. or gas mileage.

In most cases, there is no reason to pay for the more expensive high octane gas. Unless your car was designed to make use of 93 octane, using premium won't improve gas mileage or power output.

If your car is explicitly designed to take advantage of high octane gas, use it. If your car has engine knocking problems on 87 (like my Miata due to advanced timing), using high octane gas will get rid of knocking but nothing else.

[southside]

No wonder

[southside]

I always wonderd that my friend has a mustang,he always pumped premium one day he pump regular he said it aint feel the same.Think it was all in his head tho

[gforce23]

I always wonderd that my friend has a mustang,he always pumped premium one day he pump regular he said it aint feel the same.Think it was all in his head tho

It's all about the 'feel good' factor. People assume something's better just because it's a bit more expensive. I've seen people drive more slowly just because they've gotten it into their head that pumping 93 would yield a higher gas average.
No doubt 93 has better ignition properties than 87 but for a non-tuned Mustang, there shouldn't be any difference.

[ATK_Designs]

93 in my G35C
93 in my 94 H22-Accord (25+ mpg while 87 only gets 21-22mpg).
83 in my gf, and she only uses ATK Design's excluse 83 fuel. No others fuel accepted :-p

[allmotoronly]

I use 93 in everything I own, my cars, my jetski, my lawnmower, all my other yard tools.

87 is just dirty compared to 93. Look at the valves on a car that has run 87 its whole life compared to 93. The car that ran 87 will have dirty valves, among other things.

[gforce23]

I use 93 in everything I own, my cars, my jetski, my lawnmower, all my other yard tools.

87 is just dirty compared to 93. Look at the valves on a car that has run 87 its whole life compared to 93. The car that ran 87 will have dirty valves, among other things.

Incorrect. It's the additives/detergents that keep your chamber clean and not the gas molecules themselves. There's a reason why the top-tier gas consortium markets itself that way. Fill 93 octane at a mom-and-pop pump in the middle of bum fcked GA and you won't have a combustion chamber that's any cleaner.

[allmotoronly]

Incorrect. It's the additives/detergents that keep your chamber clean and not the gas molecules themselves. There's a reason why the top-tier gas consortium markets itself that way. Fill 93 octane at a mom-and-pop pump in the middle of bum fcked GA and you won't have a combustion chamber that's any cleaner.

I never said it was the gasoline itself. I am aware that the higher octane fuels usually have additives. I also don't fill up at mom and pop places. I always fill up at BP.

But, the additives are not the only thing that makes the higher octane fuels burn cleaner. Generally, with higher octane fuels, the fuel is burned more completely, leaving less residue. Carbon is a by product of combustion. When fuels do not burn completely, or are burned in a lack of oxygen, more carbon is produced. Thats why the air/fuel ratio is so important. You want to have the optimal mixture of air to the available fuel so that you get the full reactive power out of the mixture. Not enough air, and carbon is produced in high quantities. Too much air, and too much heat is produced.

Have you ever looked at the piston tops/ valves of an engine that has only ran race fuel? If is was tuned correctly, chances are that the piston tops will be very clean, with no carbon build up.

[Barefoot]

93 the truck will spark knock if i run anything less. the the other cars cheap sh!t all day.

[manilikecars]

i run 93 in the ludes but 89 in the teg and civic. don't use the cheap stuff. not worth saving the dollar

[redpanda]

whatever is the cheapest..lol 87

[HatchHero]

93!!!

[Lusos]

I myself run E10, 87 octane fuel in my 3G. In the Isuzu, I would run nothing less than 91 octane (turbo, of course that's why I do it).


I would like to run higher octane fuel in my daily driver (3G), but the price and the fact that the higher octane leads to more detonation, which in turn leads to less fuel economy kind of deturs me from the opportunity.

[RL...]

93...You should all know you get what you pay for. Being cheap costs you in the end...

[Mr. Clean]

93 cause my cluster says so.

[cactusEG]

im broke these days, so 87...

[BlkCD5]

93 back in the day when it wasn't so bad. Had to get the settings changed and now im back to 87.

[4eyedbox]

I burn the most expensive cat piss that the state of GA allows at the pumps.

[gforce23]

I burn the most expensive cat piss that the state of GA allows at the pumps.

100 oct?

[Z32redondo]

100 oct?

**** diesels a like $4.30 here and i dont even know where i could find 100 in columbus besides race gas.

[Thighs]

i run 91 in my miata. there actaully is a noticeable difference when i run 89. it feels like im driving into a 35mph wind and my car bogs ALOT below 4g. i PROMISE you can feel it. ill let somebody borrow my car who doesnt beleive me. lol

in high mileage motors, carbon deposits can increase compression and create hotspots, making the fuel more likely to detonate and causes "ping".

[hondaxpurt]

93 b/c high compression yields high octane

[gforce23]

i run 91 in my miata.

Where the **** do you find 91 in ATL? All I see is 87, 89 and 93.

[Thighs]

Where the **** do you find 91 in ATL? All I see is 87, 89 and 93.

hmm... i think your right. maybe im retarded. its 89. lol

[3.5altman]

93 homies

[AnthonyF]

The people who say they can "FEEL" a difference are morons. On my stock engine I run cheap-o. Once i get my good motor i run premium if I am going to run it hard and mid grade for daily driving. If your car is tuned for a specific fuel rating, stick to it. I've been tuned for 93 but have run 101 and C16. Didnt do any difference b/c the car wasnt tuned for it.

-Ant.

[psycho_freke]

93 In my GSR, because it says so on the cluster and on the filler door. I've heard they run like crap off of 87 octane, but I haven't been willing to test that theory. Not quite sure why it's that way though. Anyway, I run 87 octane in everything else in my driveway. I've tried switching to 89 in my sunfire, but never noticed a difference. Since I'm a cheapa$$, I switched back to 87

[Ran]

87 Octane for the GT. It get's around 21-22 MPG so it's not too bad.

[redrumracer]

mid grade my car doesnt seem to like regular

[Thighs]

so your calling me a moron ant? lol

on a high mileage motor, it will make a big difference. especially if your rings are still good. compression will actually increase over time assuming that the rings are still good and it can cause detonation when combined with carbon hotspots.