Need vs Want (Premium gasoline)

Thread Tools
 
Search this Thread
 
Old Apr 3, 2013 | 07:50 AM
  #1  
PoroPoika's Avatar
Thread Starter
|
Member
Joined: Mar 2013
Posts: 73
Likes: 0
Default Need vs Want (Premium gasoline)

Hi folks,
As some of you may already know, I'm hoping to buy a 96 960. However, my main concern is the price at the pump. I'm currently driving an 03 civic ex that I will most likely be passing to my wife. I can't help to calculate the price difference and be bothered by paying more at the pump, ESPECIALLY when adding the price for Premium gas in the mix.

My question to you all here is.. Do I really NEED to pay the extra for premium fuel if I do not care about the minor acceleration loss?

Well, Here is an article I came across, i'll copy/paste it.
Tell me what you think.











Buying premium gas is like taking vitamins — you can't always feel the difference and yet you know it's the right thing to do. But as gas prices climb, paying the extra dime per gallon for premium is like adding insult to injury. Eventually, the thought is bound to jump into your head: Do I really need to pop for premium?
Until about 15 years ago, if a car called for premium gas and you pumped in regular, the car began to knock and ping and even vibrate. But that was before they essentially put a laptop under the hood of the automobile, said Dr. Loren Beard, senior manager of Environmental and Energy Planning, for Daimler Chrysler. Now, sensors take readings and tune the engine as you drive by adjusting the timing for whatever fuel you put in the tank.
The result is that a car that calls for the mid-grade gasoline will usually run on regular without knocking, Beard said. However, its performance will suffer slightly. How much? It will be perhaps a half-second slower going from zero to 60 mph.
Volvo cars call for "premium fuel [91 octane or better] for optimum performance and fuel economy," said Wayne Baldwin, product/segment manager for the S60/S80. "However, there is absolutely nothing wrong with using 87 octane, as the knock sensors and engine management system 'protect' the engine from knocking."
Baldwin, a former rally driver who competed in SCCA Pro Rally events, said that engines have changed a lot in the past 15 years. "Cars built before 1990 probably do not have knock sensors and many brands back then relied on high-compression ratios for the best performance. Today [performance comes from] electronically controlled spark curves, turbos, variable valve timing, supercharging and knock sensors."
Issues of performance aside, Baldwin said you should never use gasoline that causes your car to knock. "Constant knocking or detonation is a real bad thing for engines," he said.
When choosing what grade of gasoline to use, Steve Mazor, principal auto engineer for the Auto Club of Southern California, said it is important to read the owner's manual carefully. The key is to figure out whether premium gasoline is "required" or "recommended." If it is recommended then a driver could opt to use a lower grade of gas, if they were willing to accept slightly reduced performance and fuel economy.
However, Mazor added, "We don't recommend that people switch down. Let's say you switch down to regular, and you have to accelerate to avoid an accident and it doesn't accelerate fast enough. The Auto Club can't be responsible for causing that situation."
Edmunds.com had a Volvo S40 in its fleet, so we consulted the owner's manual to see the exact phrasing in regard to fuel requirements. It said, "Volvo engines are designed for optimum performance on unleaded premium gasoline with an AKI (Anti Knock Index) of 91 or above. The minimum octane requirement is AKI 87." It appears that Volvo is making a recommendation for premium gas but is not requiring it.
In Edmunds.com's forums, debates abound over the pros and cons of using different fuel grades. One member even suggested there was only one type of gasoline, no difference — except for price — between regular and premium. Other members recommended using premium gas even if the manual called for regular. We put this question to Mazor and Beard.
Mazor: "All this does is do a very good job of draining your wallet. People used to put in a tank of premium to get 'the good stuff' to help their engines stay clean. But now they put detergents in all grades so it doesn't really get you anything."
Beard: "If you have car designed to run on 87 [octane], it doesn't help to run it on higher-octane-level gas. But there are several exceptions." He said that the 3.5-liter Chrysler engines are designed to run on mid-grade gas (89 octane) and it allows them to advertise a certain peak horsepower. However, it will run well on regular gas. "The difference is very small," he said.
Interestingly, Mazor noted that at some gas stations, there are only two grades of gas. However, they blend the regular and premium at the pump to produce the mid-grade gasoline. This allows them to have only two underground tanks for the gas storage.
In Edmunds' forums some drivers expressed concern about the quality of gas sold at independent gas stations and advised sticking to the so-called "name" brands of gasoline.
"Typically the only difference is the additive package they put in the gas," Beard said. The additive package is often put into the gas as the tanker is filled up at the refinery. A common additive is a detergent agent. "The law requires a certain level of detergents in gasoline. Shell, for example, is putting in more detergent. — Whether that has a measurable effect to the driver is debatable."
Detergents have a marked effect on engine deposits. "If you take apart a modern engine that has been running on a modern fuel, and compare this to an old engine that was running on old gas, you can see an obvious difference," Mazor said.
The biggest difference between today's gas and the gas sold 15 years ago is the removal of lead. Taking out the lead, and developing effective catalytic converters to more completely burn emissions, have radically cut pollution.
The major oil companies each have a magical-sounding name for their gasoline and tout its superiority over other brands. The difference is the additives or the amount of detergent added to the gas that comes from the refinery. The benefit of these additive packages is lost to most drivers, who simply fill up at the gas station with the cheapest prices or the one for which they carry a credit card.
Does a gas expert like Beard have a preference when buying gas? "I just watch the light on the dash. After it has been on for a day I get nervous and go to the closest station available."
 
Reply
Old Apr 3, 2013 | 09:14 PM
  #2  
Briar Billy's Avatar
Junior Member
Joined: Mar 2013
Posts: 3
Likes: 0
Default

Originally Posted by PoroPoika
Hi folks,
As some of you may already know, I'm hoping to buy a 96 960. However, my main concern is the price at the pump. I'm currently driving an 03 civic ex that I will most likely be passing to my wife. I can't help to calculate the price difference and be bothered by paying more at the pump, ESPECIALLY when adding the price for Premium gas in the mix.

My question to you all here is.. Do I really NEED to pay the extra for premium fuel if I do not care about the minor acceleration loss?

Well, Here is an article I came across, i'll copy/paste it.
Tell me what you think.











Buying premium gas is like taking vitamins — you can't always feel the difference and yet you know it's the right thing to do. But as gas prices climb, paying the extra dime per gallon for premium is like adding insult to injury. Eventually, the thought is bound to jump into your head: Do I really need to pop for premium?
Until about 15 years ago, if a car called for premium gas and you pumped in regular, the car began to knock and ping and even vibrate. But that was before they essentially put a laptop under the hood of the automobile, said Dr. Loren Beard, senior manager of Environmental and Energy Planning, for Daimler Chrysler. Now, sensors take readings and tune the engine as you drive by adjusting the timing for whatever fuel you put in the tank.
The result is that a car that calls for the mid-grade gasoline will usually run on regular without knocking, Beard said. However, its performance will suffer slightly. How much? It will be perhaps a half-second slower going from zero to 60 mph.
Volvo cars call for "premium fuel [91 octane or better] for optimum performance and fuel economy," said Wayne Baldwin, product/segment manager for the S60/S80. "However, there is absolutely nothing wrong with using 87 octane, as the knock sensors and engine management system 'protect' the engine from knocking."
Baldwin, a former rally driver who competed in SCCA Pro Rally events, said that engines have changed a lot in the past 15 years. "Cars built before 1990 probably do not have knock sensors and many brands back then relied on high-compression ratios for the best performance. Today [performance comes from] electronically controlled spark curves, turbos, variable valve timing, supercharging and knock sensors."
Issues of performance aside, Baldwin said you should never use gasoline that causes your car to knock. "Constant knocking or detonation is a real bad thing for engines," he said.
When choosing what grade of gasoline to use, Steve Mazor, principal auto engineer for the Auto Club of Southern California, said it is important to read the owner's manual carefully. The key is to figure out whether premium gasoline is "required" or "recommended." If it is recommended then a driver could opt to use a lower grade of gas, if they were willing to accept slightly reduced performance and fuel economy.
However, Mazor added, "We don't recommend that people switch down. Let's say you switch down to regular, and you have to accelerate to avoid an accident and it doesn't accelerate fast enough. The Auto Club can't be responsible for causing that situation."
Edmunds.com had a Volvo S40 in its fleet, so we consulted the owner's manual to see the exact phrasing in regard to fuel requirements. It said, "Volvo engines are designed for optimum performance on unleaded premium gasoline with an AKI (Anti Knock Index) of 91 or above. The minimum octane requirement is AKI 87." It appears that Volvo is making a recommendation for premium gas but is not requiring it.
In Edmunds.com's forums, debates abound over the pros and cons of using different fuel grades. One member even suggested there was only one type of gasoline, no difference — except for price — between regular and premium. Other members recommended using premium gas even if the manual called for regular. We put this question to Mazor and Beard.
Mazor: "All this does is do a very good job of draining your wallet. People used to put in a tank of premium to get 'the good stuff' to help their engines stay clean. But now they put detergents in all grades so it doesn't really get you anything."
Beard: "If you have car designed to run on 87 [octane], it doesn't help to run it on higher-octane-level gas. But there are several exceptions." He said that the 3.5-liter Chrysler engines are designed to run on mid-grade gas (89 octane) and it allows them to advertise a certain peak horsepower. However, it will run well on regular gas. "The difference is very small," he said.
Interestingly, Mazor noted that at some gas stations, there are only two grades of gas. However, they blend the regular and premium at the pump to produce the mid-grade gasoline. This allows them to have only two underground tanks for the gas storage.
In Edmunds' forums some drivers expressed concern about the quality of gas sold at independent gas stations and advised sticking to the so-called "name" brands of gasoline.
"Typically the only difference is the additive package they put in the gas," Beard said. The additive package is often put into the gas as the tanker is filled up at the refinery. A common additive is a detergent agent. "The law requires a certain level of detergents in gasoline. Shell, for example, is putting in more detergent. — Whether that has a measurable effect to the driver is debatable."
Detergents have a marked effect on engine deposits. "If you take apart a modern engine that has been running on a modern fuel, and compare this to an old engine that was running on old gas, you can see an obvious difference," Mazor said.
The biggest difference between today's gas and the gas sold 15 years ago is the removal of lead. Taking out the lead, and developing effective catalytic converters to more completely burn emissions, have radically cut pollution.
The major oil companies each have a magical-sounding name for their gasoline and tout its superiority over other brands. The difference is the additives or the amount of detergent added to the gas that comes from the refinery. The benefit of these additive packages is lost to most drivers, who simply fill up at the gas station with the cheapest prices or the one for which they carry a credit card.
Does a gas expert like Beard have a preference when buying gas? "I just watch the light on the dash. After it has been on for a day I get nervous and go to the closest station available."
I have been using "regular" 87 octane in my 97 960 for the last 60.000 miles and have had no problems whatsoever. My "around town" gas milage is 15 +/- 1 MPG and I get 25 MPG on the highway
 
Reply
Old Apr 3, 2013 | 11:29 PM
  #3  
lev's Avatar
lev
Senior Member
Joined: Oct 2010
Posts: 4,540
Likes: 137
Default

Use Premium only if it pings, Regular is fine otherwise.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RJSV70
Volvo V70
2
Dec 7, 2012 10:18 PM
01_fast_ride
Engine & Internal
7
May 30, 2007 07:25 PM
WagHag
Volvo 240, 740 & 940
7
Feb 8, 2007 10:20 PM
shanegarr
Volvo 240, 740 & 940
4
May 22, 2006 12:32 PM
revdevil
Volvo 850
11
Mar 19, 2006 09:33 AM




All times are GMT -5. The time now is 03:53 AM.