[Garfield 2]

QUOTE (Garfield 2 @ Saturday, Mar 10 2012, 09:40)

QUOTE (Garfield 2 @ Thursday, Jun 9 2011, 15:58) It looks like it's going down. National average for Unleaded is 1.49 and diesel is 1.39. In my town it's 1.47 petrol and 1.38 diesel. f*ck me. 1.62 for Unleaded and 1.55 for Diesel today...

Happy to see some reductions, right now it's at 1.61 for Unleaded and 1.49 for Diesel.

[sivispacem]

£1.36 petrol and £1.42 diesel round at the moment. It's been pretty stable the last three months.

[leik oh em jeez!]

$3.55 here. Last time I gassed up before that is was about $3.83. To bad I don't have any money, I might have filled the Burb up with premium.

[GeorgieNJ]

Our petrol prices are $6,8 for US gallon (1,42EU / 1L) at the moment. Since last year we had ~ 0.25 EU increase. I'm pretty sure that Eastern Europe is the sh*tties place in the whole EU when it comes to fuel prices. Where i live median income is about 520 EU ($661) per month and paying this much for petrol sucks big time.

[Carlover325]

It was $4.35/gallon is the average for my area right now. I'm just glad I work across the street from where I live.

[trip]

Once again I'm going to come in here after a few beers and say that I have no idea how much gas costs. I think I fill my car about twice a year .

I filled my bike the other day. The expensive octane stuff - $10, and that should last me a good while.

[Illousion]

Slowly but surely going down in Sweden as well. Still, I drive cars that get 21 (LTD) and 20.5 (Amazon) miles per gallon so it's not like I'm starving here. The tank in the Volvo has a total volume of 45 liters but usually swallows 31. Lasts me about a week.

[Lurch]

It's went down a bit here. Payed $3.65/gallon last night for premium. It was around $4.05/gallon a month ago. I don't even follow what regular is. Maybe once I get the Ranger.

This post has been edited by Lurch on Saturday, May 19 2012, 14:10

[leik oh em jeez!]

QUOTE (Lurch @ Saturday, May 19 2012, 08:48)

It's went down a bit here. Payed $3.65/gallon last night for premium. It was around $4.05/gallon a month ago. I don't even follow what regular is. Maybe once I get the Ranger.

Just checked and it's the same here now. Of course on my side of town the cheapest premium is $3.75, but there's a Gogas that's got it for $3.69 between my house and walmart. Regular is down to 3.45.

If gas goes down any further and stays down, I might buy another Suburban.

Edit: Just put $11.03 in premium in the Suburban, and the needle moved more than the last time I put gas in it, which was $10.00 of regular. Runs smoother on premium too, I'll put some more in when I get payed. I heard prices are supposed to go down even more, any one else heard anything about this?

This post has been edited by leik oh em jeez! on Tuesday, May 22 2012, 22:26

[Carlover325]

If your vehicle's motor was designed to run off regular gasoline, there is no reason to use anything else. There is no improvement in performance or economy.

The higher octane fuels are for vehicles with higher performance motors.

[leik oh em jeez!]

Correction:
The octane rating is the fuel's resistance to ignite, and is generally used in engines with a higher compression ratio.
Octane in itself does not add power, so you are right there. In a perfect world where octane rating is the only difference in the fuels, you would be entirely right. But lets face the simple fact that octane rating is not the only factor to be considered here. Higher octane gas on average has a higher energy density meaning more energy per molecule, and the larger molecules are often more dense physically. So in the same amount of fuel you're getting more molecules that all hold more energy. Of course this is not always the case and will vary between a good number of other factors. But it is true on average, so however large or small it may be, you most likely will see a bit more power. Higher energy fuels also tend to burn longer, transferring more of their heat energy to the engine, helping with cold starts, and lowering EGTs which will typically increase the lifespan of your cats. Higher octane fuels will also help with even the smallest hint of pre-ignition, making your engine run smoother and more efficiently, and reducing wear on components in the process.

Just because a fuel is rated as premium based on its octane rating doesn't mean that's the only thing that's different. So while high octane won't give you more power, premium fuel might.
It depends on far too many factors to just say it does work for everyone or doesn't. It's specific to hundreds of factors so the only way to know if it'll help you is to test it yourself in the vehicle you drive and buying fuel from the station you most often buy from.

In my case, The engine runs noticeably smoother.

[Carlover325]

That's interesting. I haven't noticed any difference in mine between regular, mid-grade, and premium. It seemed like the premium actually had worse economy. But my motor is a pretty low compression. I usually go to the same Chevron every time. The only time mine has ever seemed to run a little better was when I put in straight-up gasoline (no ethanol).

I did just read something that said that said heavier vehicles and vehicles used for towing may see improvement with premium gasoline. I'd say the Suburban is pretty heavy.

[Lurch]

QUOTE (Carlover325 @ Thursday, May 24 2012, 01:08)

That's interesting. I haven't noticed any difference in mine between regular, mid-grade, and premium.

You live in California. Is there any difference in the 3 there. You guys sure as hell don't get the good sh*t.

[leik oh em jeez!]

QUOTE (Carlover325 @ Thursday, May 24 2012, 01:08)

I'd say the Suburban is pretty heavy.

For sure. And the effect is greatly reliant upon all of the additives in the gas you're using. Which vary so greatly, there's a good chance I could squeeze 5% more power out of premium at one station, but see a 5% LOSS in power vs regular if I buy premium from another station.

Sad part is that it's literally impossible to know how it'll run in your engine unless you try that specific fuel (that grade from THAT station) in your engine. And even then it will vary from season to season.

[Carlover325]

QUOTE (Lurch @ Wednesday, May 23 2012, 23:14)

QUOTE (Carlover325 @ Thursday, May 24 2012, 01:08) That's interesting.  I haven't noticed any difference in mine between regular, mid-grade, and premium. You live in California. Is there any difference in the 3 there. You guys sure as hell don't get the good sh*t.

Regular is rated at 87, mid-grade is 89, and premium is 91. No 93 here, unfortunately. When I lived in South Carolina, I could get 100% gasoline (no ethanol), I haven't found anywhere that offers that in southern California.

This post has been edited by Carlover325 on Thursday, May 24 2012, 06:31

[corvettelover]

QUOTE (Carlover325 @ Wednesday, May 23 2012, 09:56)

If your vehicle's motor was designed to run off regular gasoline, there is no reason to use anything else.  There is no improvement in performance or economy

Yeah, gas prices have really dropped, I filled my car up a bit over a week ago and it was around 3.69 IIRC.

[sivispacem]

QUOTE (Carlover325 @ Wednesday, May 23 2012, 10:56)

If your vehicle's motor was designed to run off regular gasoline, there is no reason to use anything else.  There is no improvement in performance or economy. The higher octane fuels are for vehicles with higher performance motors.

Not entirely true. Many vehicles have switchable maps for regular/high octane fuel. Almost all Japanese cars are actually designed for higher octane fuel, for instance. Also, the increased prevalence of ethanol in higher octane fuel is a benefit too- its got a higher chemical energy potential per volume so even on vehicles without high compression ratios you see a performance boost, and though marginal if all other factors were equal and speed was used as the comparison factor instead of driving style then you'd use less fuel as you would have to spend less time at WOT to reach the same speeds.

[Carlover325]

Today is the first day I've seen gas under $4.00/gallon since I've been back in California (late February). Gas station nearby is $3.99/gallon.

[leik oh em jeez!]

I just paid $3.33 for regular.

[nic_23]

£1.34 per litre petrol and £1.40 a litre of diesel

its funny how Americans moan like mad about there fuel prices going up but really its nothing, it only seems high because there cars are fuel guzzling pieces of sh*t.