everyone knows that super unleaded is the patron of gasoline.
classy people use super unleaded because they have better taste and want the finer things in life.

people who use unleaded plus are weirdos to me... kinda like people who use macs? WHY?
and regular old joe blow uses regular boring gasoline!

what do you think?

My vehicle only takes regular unleaded per instructions of vehicle manual

luv4u said:

but u can put super if u want it to run better right?

mirrorbestfriend said:

Why do think manual's have instructions??? Don't you think there is a reason for that???

You going to pay my bill if my vehicle needs fixing???

luv4u said:

Sometimes (doesn't mean your case in particular) the manual recommends a specifit type/company for their product because they get paid for it.
For example, KTM recommends a specific oil for their engines, which is very expensive. But there is a cheaper oil that works better, and doesn't damadge the engine. It's a known fact by professionals. It's all about money in some cases.

ArielB said:

My manual does not recommend a company or a product.

luv4u said:

My vehicle only takes regular unleaded per instructions of vehicle manual

right, but my sibling has a similar car and he uses the super one. if it makes the car run then its all good.

missmad said:

right, but sometimes if it says to use regular unleaded and you use super, your car won't run at all

R3V said:

yea ive heard that, not sure works fine with the car he has. i would never dare try it though.

use super if u want your car to last longer and to impress girls

OMG




Best. one. yet.

I don't like any of them - they all give me terrible heartburn.

How many different trucks supply the gas stations fuel?

I've only ever seen one so riddle me this.

Am I paying extra for the filter they put on the pump? Or is this just another bullshit scam to get people to pay more for "better" gas?

Saw a report that stated that there is essentially no sizable difference in performance between gas grades.

Basically, suckas buy premium gas.

JustErin said:

Mystery solved.

So mirrorsbestfriend, how's this on you ego?

JustErin said:

not true, newer Audis for certain need premium gas unless you want to be taking them into the mechanic every time you put regular gas in the car.

premium gas keeps the algorithm of the vehicle at its peak timing.
if you place regular unlead fuel in the car and drive hard like on the highway, its messes this up and sets off alarms in the car that something is wrong with the fuel and its not able to work at is peak performance.
You can use unleaded gas, but dont have a lead foot while the cheap gas is in the car, or you will be taking it into the mechanic.

so does premium fuel come from premium fossils and shit??

horatio said:

Just going by the report I saw. Just googled it as well and top entries say exactly what the report said.

JustErin said:

the only time octane matters is if fuel doesn't have enough octane for the engine...burning a higher octane fuel than what is recommended neither helps or harms the engine...

any engine can be tuned to accept low octane fuel...
[Edited 5/16/08 9:17am]

JustErin said:

this has been my experience from putting regular gas in those cars, so that one mostly sits in the garage now

I drive a BMW and if you don't put super unleaded in the car you can wreck your engine and the warranty will be voided. So, I'm not chancing it.

JustErin said:

Actually that isn't true although most suckas wont actually NOTICE the difference.

The higher the octane rating the hotter/more intense the ignition will be IF the engine is tuned right.

With standard 95 octane i get 137hp out of the bike
With 98 octane it is up to 148hp
On 108 octane superbike fuel it kicks 164 hp but the muthafucker needs a rebuild every 3 race meetings

Posted on Sun, Mar. 30, 2008

Drivers have had fill of premium gasoline
By Houston Chronicle

The price of premium-grade gasoline has been rising faster than you can say Mercedes-Benz.

Now over $3.55 a gallon nationwide - more than 30 cents above regular unleaded, it’s boosting the cost of owning a long list of cars and trucks, including some non-luxury vehicles.

But as pump prices rise, fewer consumers appear willing to spring for the costlier fuel.

In 2007, U.S. premium gasoline consumption fell to roughly 35.6 million gallons per day, its lowest point in 24 years, according to the U.S. Energy Information Administration.

Experts say the premium pullback is part of a longer-term trend that might be affected by a changing vehicle fleet and the perception by some that the higher-grade fuel is no better for their vehicles than regular gasoline.

Higher pump prices, however, accelerated the trend, they said.

Who needs premium: Premium gasoline is recommended by nearly all luxury automakers and some mainstream automakers as a way to enhance engine performance.

Some automakers, including Mercedes-Benz, require premium gas because they say using lesser-grade fuel can damage engines and invalidate warranties.

Whatever benefits premium might provide in high-performance cars, it doesn’t necessarily follow that cars designed for regular will benefit from premium.

Using a higher-octane gasoline than recommended by the owner’s manual does not improve performance or fuel efficiency; it only costs more money,- the U.S. Environmental Protection Agency said in its 2008 Fuel Economy Guide.

What’s the difference: Premium gasoline carries an octane rating at or above 91, compared with 89 for midgrade and 87 for regular unleaded.

Fuels with a higher octane rating are more resistant to premature detonations, which a driver hears as pings and knocks. These waste energy in the fuel and can harm the engine.

The risk of premature detonation is higher in vehicles with high-performance or high-compression engines - sports cars, luxury sedans and SUVs.

What carmakers say: Porsche, specifies in its owner’s manual that its models are designed to run on 93 octane gas, which is not available at some stations. It doesn’t indicate any exceptions, a spokeswoman said.

Mercedes owners who ignore the company’s 91 octane fuel requirement could get increased deposits in their vehicles’ exhaust systems, a Mercedes-Benz USA spokesman said. Using lower-grade fuel also could potentially void the car’s warranty, he said.

But what if there isn’t a premium gas pump around when the needle hits empty?

Mercedes tells owners to use regular - but no more than half a tank - until they can find a station that sells premium.

Other automakers are more flexible. Volvo recommends using 91 octane gas, but says customers should notice "little or no difference" if they fill up with a lower-grade fuel, said Steve Hansen, a Volvo product manager.

Modern auto engines, using electronic sensors, adapt to different fuel grades, he said.

BMW spokesman Sean Lobosco agreed that sensors would help protect a high-performance engine using a lesser-grade fuel. But cheaper fuel could "gum up" the motor and reduce horsepower and torque levels achieved when premium gas is in the tank, he said.

http://www.thestate.com/1...59394.html

Well my dyno figures and especially my arse dyno says different

JustErin said:

Here in the US most gas stations have all three octane grades so difficulty finding super premium gas is not an issue.

mdiver said:

Plus having re-read your article it is exactly correct, the modern engine adapts to get the most from what it has however for ultimate power or ultimate setup a single higher octane fuel and tuning the engine to that will give a better performance

mdiver said:

Yes, that's why I posted that and that's why shrugged.

But it still doesn't take away from the fact that I saw a report that says there is no difference and that most sites I then found online supported this finding.

they dont know what they talking about...they must drive YUGO'S

JustErin said: