Which is better gas to fill your car up with--Premium or Super? - Mercedes-Benz Forum

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 50 (permalink) Old 08-11-2004, 03:22 PM Thread Starter
BenzWorld Member
 
Date registered: Jun 2004
Posts: 87
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Send a message via AIM to BenzGirl04
(Thread Starter)
Which is better gas to fill your car up with--Premium or Super?

Hey All...

I was just wondering what everyone thought of which was the best gas to fill up your Mercedes with/What do you use?! Just wondering.

I usually use Super, but it seems to eat up the gas rather quickly, i think. My car can go for about 4 days without needing to be filled up again.

~MB
BenzGirl04 is offline  
Sponsored Links
Advertisement
 
post #2 of 50 (permalink) Old 08-11-2004, 04:41 PM
MTI
BenzWorld Elite
 
MTI's Avatar
 
Date registered: Aug 2002
Vehicle: '85 2.3-16 '99 C280 '11 GLK350
Location: Scottsdale, Arizona, USA
Posts: 4,805
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

I believe the best answer is to use the lowest octane fuel that does not cause engine pre-ignition, sometimes called "pinging." Using a higher octane fuel is inefficient, not just in terms of cost, but in the incomplete combustion of fuel. It also matters what fuel you're buying. No-name stations are selling "base gasoline" which is what the refinery starts out with. "Base" fuel is then sold to other companies that add their "special" ingredients, like detergents and other additives to make it their own brand.
MTI is offline  
post #3 of 50 (permalink) Old 08-11-2004, 06:00 PM
BenzWorld Member
 
Date registered: Dec 2003
Posts: 180
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

I recommend Kerosene. That's what jets use and they go real fast.
E300POS is offline  
post #4 of 50 (permalink) Old 08-11-2004, 06:41 PM Thread Starter
BenzWorld Member
 
Date registered: Jun 2004
Posts: 87
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Send a message via AIM to BenzGirl04
(Thread Starter)
RE: Which is better gas to fill your car up with--Premium or Super?

Kerosene?!


Which gas is the lowest octane-what type of gas do you use?
BenzGirl04 is offline  
post #5 of 50 (permalink) Old 08-11-2004, 08:30 PM
BenzWorld Member
 
Date registered: Aug 2004
Posts: 100
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Send a message via MSN to red_dragon Send a message via Yahoo to red_dragon
RE: Which is better gas to fill your car up with--Premium or Super?

i would still recommend high octane gas. based on experience, i find the car more efficient however its just quite expensive cause obviously it burns faster than any premium gasoline. in the long run, i get a better ride and faster acceleration.
red_dragon is offline  
post #6 of 50 (permalink) Old 08-11-2004, 09:28 PM
BenzWorld Member
 
big_b's Avatar
 
Date registered: May 2004
Vehicle: 1990 190e 2.6 150k
Posts: 121
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

everywhere i look the car always says octane 93 or better!!!

personally i use bp and amoco super. they spend the most money on improving the environment and finding cleaner burning fuels.

whatever you do, don't choose exxon, those bastards don't give a damn about pollution and the environment
big_b is offline  
post #7 of 50 (permalink) Old 08-12-2004, 08:34 AM
BenzWorld Member
 
Mark08859's Avatar
 
Date registered: Jul 2003
Location: New Jersey
Posts: 357
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

Most modern MBs are designed for 91 octane. You should use this or whatever your preferred gas station sells that is closest to it w/o going under 91 octane. Usually that will be 93 octane. Don't go for higher octane than needed (or available) as you're simply wasting your money. Don't know where you're located, but in my neck of the woods Super and Premium mean pretty much the same thing. [:)]

A number of folks do use lower octane gas (not so low as to knock); with no issues. Basically, you have some loss of power. Some forum members have also reported fewer MPGs with reduced octane gas. You won't be doing any real harm to your car, but you won't be realizing its full potential either.

'08 C300 Sport/Barolo Red/Gray-Black Leather/6 SP/AMG Wheels/iPod/P2/MultiMedia/Tele Aid
'09 Pasion Coupe/Gray Metallic/Black Tridion/Comfort Package/Solid Roof/Premium Sound/Fog Lights/Clock-Tach/Anti-Theft/Navigation/Bluetooth
Mark08859 is offline  
post #8 of 50 (permalink) Old 08-12-2004, 10:55 AM
BenzWorld Member
 
Classic_wong118's Avatar
 
Date registered: Dec 2003
Vehicle: 1998 S500
Location: New York
Posts: 73
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

Always super or premium octane 93 unleaded....it might cost more,MB manual book suggest...must....
Unleaded 93 octane. Shell or Mobil carry clean Gas.
Classic_wong118 is offline  
post #9 of 50 (permalink) Old 08-12-2004, 11:30 AM
BenzWorld Extremist
 
pcmaher's Avatar
 
Date registered: Jun 2004
Vehicle: 1995 S600 (sold)
Location: Chicago, IL USA
Posts: 1,127
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

I have a very thirsty V12, so I was interested to see what running the car with lower octane (cheaper) fuel resulted in.

Most modern cars now have sensors on the engine that retard the ignition timing when the engine starts to knock. This decreases efficiency as well as power of the motor. You can use lower octane fuel (to a point) without harming anything, because the engine will adjust accordingly. I did a little study, and compared the m.p.g. I got using 91 and 93 octane fuel. I noticed that I got slightly worse mileage using 91 octane instead of the recommended 93 octane. In addition, performance was probably not as good, but I didn't really study this in detail. After crunching the m.p.g. numbers, there was very little advantage in using the cheaper 91 octane fuel. The only advantage was in cost, and even so I was only saving a couple bucks on every tank. It made more sense to keep using the 93 octane fuel...it's a little cleaner, and I get full the full performance that the engine is capable of.

1995 S600, 1 of 618 (sold)

"Speed is just a question of money...how fast you wanna go?"

LONG LIVE THE W140!
Visit my Web Page at http://v12uberalles.com
pcmaher is offline  
post #10 of 50 (permalink) Old 08-12-2004, 11:44 AM
MTI
BenzWorld Elite
 
MTI's Avatar
 
Date registered: Aug 2002
Vehicle: '85 2.3-16 '99 C280 '11 GLK350
Location: Scottsdale, Arizona, USA
Posts: 4,805
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?

I see from this thread that the "Higher number and higher cost must mean better" philosophy on gasoline is still with us. This is not true and probably comes from the days when high performace cars required the more expensive fuel to avoid premature detonation from the higher compression ratios of those engines. Higher octane does not mean "bigger bang" in the identical combustion chamber. With modern fuel delivery systems and sensors, you do not necessarily need the most expensive gas.

How to find the right one? When you need a refill, give a quarter tank of a lower grade a try. If you get predetonation (ping, knock, etc.) then fill the rest of the tank with a higher octane.
MTI is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome