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Author Topic: what the diffence between premium gas than regular Back to Topics
brazilianguy

Sophomore Author
Orlando

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Message Posted: Nov 11, 2013 5:29:14 PM

please somebody can help me.
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Bartlettvanman
Sophomore Author Memphis

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Message Posted: Apr 22, 2014 9:08:57 AM

Price. Doubt if you will see a big increase in gas mileage, but the car should have more pep and burn cleaner if you use it on occasion.
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Skyjunky
All-Star Author Portland

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Message Posted: Mar 20, 2014 6:23:33 AM

None.....Just buy non-ethanol...and buy LL regular.
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RalphHightower
Champion Author South Carolina

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Message Posted: Mar 20, 2014 6:00:34 AM

price and octane
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twt
Champion Author Virginia Beach

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Message Posted: Mar 20, 2014 5:04:06 AM

Too many to list, here. Follow your owner's manual instructions.
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dontuknowOH
Champion Author Ohio

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Message Posted: Mar 20, 2014 5:02:40 AM

The extra cost makes you think you have a tiger in your tank, without seeing the tail, read your operation manual and then see if it mentions (Lead-foot). Under-hood look for the words HO, Turbo Power, Super/Charged, Torque Boost, HO Ram/Charged, DOHC Turbo, in (Bold Lettering), buy a manual maybe. GoodLuck!......
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rrtruck
Champion Author Austin

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Message Posted: Mar 19, 2014 9:24:51 PM

Basically, the timing can be adjusted for more power with premium and still not ping.
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Kyun7
Sophomore Author Seattle

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Message Posted: Mar 19, 2014 2:38:53 PM

besides price?

plenty of explanations here:

https://www.google.com/search?q=lubro+molly#q=difference%20between%20regular%20and%20premium%20gas
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redfish67
Champion Author Dallas

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Message Posted: Mar 19, 2014 10:31:16 AM

a lot of wasted money
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luvmyrv
Champion Author Winnipeg

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Message Posted: Mar 11, 2014 12:24:06 PM

about 15 cents a litre...in Canada premium fuel has no ethanol.
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Awing1
Champion Author Ontario

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Message Posted: Mar 11, 2014 11:33:30 AM

Price and octane.
Does premium gas help improve gas mileage? Not sure.
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Saab93turbo
Champion Author Washington

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Message Posted: Mar 11, 2014 11:08:39 AM

In a few brands, the antideposit additive levels are higher in premium. Shell does this. Chevron does not. Source is the company's website
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pilotdlh
All-Star Author Minnesota

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Message Posted: Mar 6, 2014 5:34:46 PM

A friend of mine used to work at a local refinery. He said they only made premium and sold it for premium or regular pumps. It was more costly for them to make two grades of gas than to make everything to the premium specs and sell it for the regular price.
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RalphHightower
Champion Author South Carolina

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Message Posted: Mar 6, 2014 5:59:37 AM

octane and price
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herbiepopnecker
Champion Author British Columbia

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Message Posted: Mar 6, 2014 1:27:37 AM

It's made from upper class dinosaur juice
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mhradecky
Veteran Author New York

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Message Posted: Mar 5, 2014 9:15:43 PM

93 burns hotter and cleaner.
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weddy11
Champion Author Phoenix

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Message Posted: Mar 1, 2014 9:59:42 AM

26 cents a gallon more or less
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dieselpower2014
All-Star Author Atlanta

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Message Posted: Feb 28, 2014 12:52:12 AM

octain
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JimBlake56
Veteran Author Akron

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Message Posted: Feb 20, 2014 1:49:20 PM

Premium is "higher-octane-rating" fuel, & "octane" is an old-fashioned word for the anti-knock index. Measured by a lot of different test procedures depending on the rules of the country you live in.

A whole lot of answers in this thread are correct about the main thing. Use what your car's owners manual calls for. Higher "octane" fuel doesn't do any good. And for a majority of cars that call for premium fuel, using regular will simply lower the power of your engine, but not do any damage.
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luvmyrv
Champion Author Winnipeg

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Message Posted: Feb 15, 2014 8:15:26 PM

In Canada premium has no ethanol.
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krazkar
Champion Author Calgary

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Message Posted: Feb 15, 2014 6:49:43 PM

It costs more. If your car doesn't require it, don't spend more for it
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Boyrr
Champion Author Allentown

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Message Posted: Feb 15, 2014 6:11:58 PM

It cost more
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Hemond
Champion Author Providence

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Message Posted: Feb 15, 2014 8:26:43 AM

This is a basic question and yet no one on this board has given a clear and satisfactory answer.
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redfish67
Champion Author Dallas

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Message Posted: Feb 3, 2014 10:00:44 AM

20-30 cents a gallon
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Bowlerman10
Sophomore Author Fort Worth

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Message Posted: Jan 28, 2014 1:15:35 PM

In todays cars, very very little to no difference. A well known car expert in the DFW area puts regular in his Acura that calls for premiam. The car runs great by his own words.
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MertieMan
Champion Author Lexington

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Message Posted: Jan 28, 2014 9:09:08 AM

The higher octanes run hotter in the engine. Only use what your owners manual specifies.
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bluenvoy
Champion Author Nashville

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Message Posted: Jan 27, 2014 10:03:13 AM

Put the fuel in that your owners manual says to.
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Boyrr
Champion Author Allentown

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Message Posted: Jan 27, 2014 6:10:31 AM

needed for engines that have higher compression.
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pghbill
Champion Author Pittsburgh

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Message Posted: Jan 27, 2014 12:23:35 AM

about 20 to 30 cents more
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cv
Champion Author Raleigh

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Message Posted: Jan 27, 2014 12:07:24 AM

High octane gas actually has a lower ignition point, thus prevents engine knock when the engine has higher compression. It is no "better" than regular octane.
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GuzzleMeThis
Rookie Author New York

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Message Posted: Jan 7, 2014 5:03:01 AM

Higher octane burns through your money at higher rate of speed.
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GLM4205
Champion Author Toledo

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Message Posted: Jan 6, 2014 4:45:13 PM

Price
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dontuknowOH
Champion Author Ohio

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Message Posted: Jan 3, 2014 2:04:05 PM

Like buying a more expensive Broom, later you will like it or wish you hadn't bought it, time will tell. How about work gloves?
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hyeglenn
Champion Author Fresno

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Message Posted: Jan 3, 2014 10:16:14 AM

Just the price.
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gvan
Champion Author Chicago

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Message Posted: Dec 25, 2013 12:11:07 PM

Forty cents difference is not uncommon.
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RS101
Champion Author Minnesota

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Message Posted: Dec 25, 2013 9:15:03 AM

Merry Christmas
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dontuknowOH
Champion Author Ohio

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Message Posted: Dec 13, 2013 8:16:48 AM

The Flash point is a higher in cylinder temp to prevent pre-detonation(going explosive)before the timed firing of the engines spark-plugs.

Lower octane has a lower temperature flash point for lower compression designed engines and possible a slower burn cycle on expansion pressure.

High performance designed engines work on the mid/extreme limits of their RPM range often.

Lesser designed engines are more dependable for the long haul of most moderate/medium/seldom extreme but lengthy work loads for the average purpose, needing less tuning. Less expensive fuel quality to maintain.
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ricebike
Champion Author New Jersey

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Message Posted: Dec 13, 2013 12:45:04 AM

is google search broken?
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RS101
Champion Author Minnesota

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Message Posted: Dec 9, 2013 7:32:40 AM

about 20 to 60 cents.
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ranger1169
Champion Author Harrisburg

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Message Posted: Dec 9, 2013 1:36:54 AM

20- 30 cents
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GrumpyCat
Champion Author Alabama

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Message Posted: Dec 5, 2013 10:45:41 PM

"Hearing a 'ping' or 'knock' is not just hearing a ping or knock. We're talking about pre-detonation of fuel. Dangerous explosions that can destroy pistons and piston rings, as well spark plugs. Now most tunes on factory vehicles aren't very aggressive or have a great deal timing added to the tune, but run the proper octane rated fuel for your vehicle. You can lose a motor, over time, for being real cheap attempting to save a few cents.

I'd also inspect every spark plug if I heard pinging or knocking. That's a detonation episode and you should insure you didn't damage any spark plugs."

If you hear pinging or knocking then replace the knock sensor. If thats not it then you are hearing loose parts inside the engine.
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Boyrr
Champion Author Allentown

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Message Posted: Dec 5, 2013 6:59:27 AM

87 is fine if that's the grade your car needs. you only need 93 with cars that require it for peek performasnce
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Glasman
Champion Author South Carolina

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Message Posted: Dec 4, 2013 6:45:52 PM

big difference is .15 to .25 cents a gallon.
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randy3116
Champion Author Tennessee

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Message Posted: Nov 27, 2013 8:22:14 AM

all gasoline grades contain the same amount amount of chemical energy and, when combusted, both regular and premium grade gasoline provide the same amount of termal energuy; the differences are the additives in premium that allow higher performance engines to burn the fuel at higher temperatures and pressure
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MertieMan
Champion Author Lexington

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Message Posted: Nov 27, 2013 12:31:12 AM

If your owners manual says run 87 octane, then run exactly that. Using a higher octane rating can cause problems with your intakes.
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TheRobster666
Rookie Author New Jersey

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Message Posted: Nov 19, 2013 8:47:13 PM

Hearing a 'ping' or 'knock' is not just hearing a ping or knock. We're talking about pre-detonation of fuel. Dangerous explosions that can destroy pistons and piston rings, as well spark plugs. Now most tunes on factory vehicles aren't very aggressive or have a great deal timing added to the tune, but run the proper octane rated fuel for your vehicle. You can lose a motor, over time, for being real cheap attempting to save a few cents.

I'd also inspect every spark plug if I heard pinging or knocking. That's a detonation episode and you should insure you didn't damage any sparkplugs.
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rick_evans
Champion Author Boston

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Message Posted: Nov 19, 2013 5:24:49 PM

Premium can be run in higher compression engines with out knocking.
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WEPSMAN
Champion Author South Dakota

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Message Posted: Nov 18, 2013 8:07:18 AM

The amount of octane it has in it. Premium has more octane which usually will cost anywhere between .10-.30 cents a gallon more.
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WEDDY
Champion Author Phoenix

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Message Posted: Nov 17, 2013 10:57:52 AM

12 to 16 cents a gallon and higher octane. Not needed in most cars.
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dontuknowOH
Champion Author Ohio

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Message Posted: Nov 17, 2013 10:00:56 AM

It's often used by drivers who want a Tiger in their tanks, think back a little tigers don't knock they growl....
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Glasman
Champion Author South Carolina

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Message Posted: Nov 17, 2013 9:39:24 AM

% of octane
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