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Author	Topic: PREMIUM UNLEADED FUEL ?????	Post a Reply Back to Topics

CORNHICK All-Star Author Omaha Posts:597 Points:270,505 Joined:May 2008	Message Posted: Jun 21, 2012 3:28:18 PM Ignore CORNHICK Report Abuse I buy premium unleaded for my Impala it may cost 30 cents more but my mechanic says premium does in fact burn cooler than regular gas or the gas with ethanol in it for that matter. He say's if I am going to keep the car for a long time he said to use the Premium! Let me Know what you guys think of this!!!!

CORNHICK

All-Star Author
Omaha

Posts:597
Points:270,505
Joined:May 2008

Message Posted: Jun 21, 2012 3:28:18 PM

Ignore CORNHICK Report Abuse

I buy premium unleaded for my Impala it may cost 30 cents more but my mechanic says premium does in fact burn cooler than regular gas or the gas with ethanol in it for that matter. He say's if I am going to keep the car for a long time he said to use the Premium! Let me Know what you guys think of this!!!!

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RAB2010 All-Star Author Kalamazoo Posts:506 Points:66,210 Joined:Mar 2010	Message Posted: Feb 24, 2013 8:49:11 PM Ignore RAB2010 Report Abuse It is also a cleaner fuel. The Chevy 5.7L looks like new inside after 160,000 burning premium and oil changes every 3,000 or three months.
albie_4197 Champion Author Ohio Posts:1,030 Points:608,235 Joined:Sep 2001	Message Posted: Feb 24, 2013 8:05:02 PM Ignore albie_4197 Report Abuse I only use 87 octane in my truck. The manual recommends it. I will buy cleaners with additives instead of paying a higher price for higher octane.
CORNHICK All-Star Author Omaha Posts:597 Points:270,505 Joined:May 2008	Message Posted: Feb 24, 2013 5:52:19 PM Ignore CORNHICK Report Abuse why only premium for atvs and snowmobiles is it better?
cogas1 Veteran Author Colorado Posts:399 Points:333,015 Joined:Mar 2012	Message Posted: Feb 20, 2013 6:41:38 AM Ignore cogas1 Report Abuse I only use premium for ATV's, snowmobiles, etc.
cogas1 Veteran Author Colorado Posts:399 Points:333,015 Joined:Mar 2012	Message Posted: Feb 20, 2013 6:41:30 AM Ignore cogas1 Report Abuse I only use premium for ATV's, snowmobiles, etc.
RecklessFire Sophomore Author Dallas Posts:207 Points:292,275 Joined:Apr 2011	Message Posted: Feb 20, 2013 3:54:02 AM Ignore RecklessFire Report Abuse mechanic fed you a line. engines are made for a specific octane level - it's written in the manual.
PaylessKY Champion Author Kentucky Posts:8,730 Points:1,582,425 Joined:Oct 2008	Message Posted: Feb 20, 2013 12:27:36 AM Ignore PaylessKY Report Abuse Use what your vehicles manual states you should use. As for my area there is no ethanol free gasoline.
rex0000 Sophomore Author Indianapolis Posts:164 Points:176,910 Joined:Apr 2011	Message Posted: Feb 19, 2013 10:27:06 PM Ignore rex0000 Report Abuse regular
TXBruin All-Star Author San Antonio Posts:671 Points:463,575 Joined:Sep 2011	Message Posted: Jan 26, 2013 9:59:58 AM Ignore TXBruin Report Abuse no
sunnyz Rookie Author Montana Posts:18 Points:141,970 Joined:Jul 2012	Message Posted: Dec 14, 2012 7:39:03 PM Ignore sunnyz Report Abuse Use the octane level recommended by the engine manufacturer
Casey225 Rookie Author Baton Rouge Posts:91 Points:80,265 Joined:Nov 2012	Message Posted: Dec 14, 2012 7:35:02 PM Ignore Casey225 Report Abuse It's a waste of money. If your car calls for 87 octane thats what it's tuned for and will not run any different with a higher octane. That being said, some sports cars and high end luxery cars are tuned and will only run on 92+ octane.
CORNHICK All-Star Author Omaha Posts:597 Points:270,505 Joined:May 2008	Message Posted: Dec 14, 2012 7:01:18 PM Ignore CORNHICK Report Abuse lissyking gas is not gas it may have ethanol in it
lissyking Veteran Author Miami Posts:400 Points:124,890 Joined:Oct 2012	Message Posted: Dec 5, 2012 9:24:33 AM Ignore lissyking Report Abuse GAs is gas
tkawashima Champion Author Honolulu Posts:3,763 Points:910,100 Joined:Sep 2010	Message Posted: Dec 4, 2012 9:48:15 AM Ignore tkawashima Report Abuse no
alphanyr Champion Author Connecticut Posts:4,835 Points:676,725 Joined:Apr 2011	Message Posted: Dec 4, 2012 9:46:15 AM Ignore alphanyr Report Abuse no
WEDDY Champion Author Phoenix Posts:3,249 Points:1,038,495 Joined:Oct 2009	Message Posted: Dec 4, 2012 9:19:52 AM Ignore WEDDY Report Abuse Regular, Premium is a waste of money if your car does not need the extra octane.
Dennis783 Champion Author Des Moines Posts:13,599 Points:2,704,860 Joined:Sep 2005	Message Posted: Dec 3, 2012 8:02:20 AM Ignore Dennis783 Report Abuse use whatever the manufacturer recommends
OceansidePoms Champion Author Massachusetts Posts:1,680 Points:688,075 Joined:Nov 2008	Message Posted: Dec 1, 2012 7:57:35 PM Ignore OceansidePoms Report Abuse I USE Premium '92-93' (93.5/94 when available) Octane Gasoline 70+% of the time, Mid Grade(s) '89-91' 20% of the time & Regular '87' - '88' maybe 10% of the time. I prefer Prem. 93 Ethanol Free, so when I can find it around where I live, I get it!
travelzonecente Champion Author Riverside Posts:3,842 Points:1,090,195 Joined:Jun 2008	Message Posted: Dec 1, 2012 1:07:11 PM Ignore travelzonecente Report Abuse gs is gas and you only need 87
jack4141 Champion Author Alabama Posts:2,985 Points:694,580 Joined:Mar 2011	Message Posted: Dec 1, 2012 12:15:38 PM Ignore jack4141 Report Abuse Ok
myphenix Champion Author New Jersey Posts:2,285 Points:362,675 Joined:Sep 2005	Message Posted: Dec 1, 2012 11:57:28 AM Ignore myphenix Report Abuse overrated
BuzzLOL All-Star Author Toledo Posts:902 Points:25,645 Joined:Apr 2011	Message Posted: Dec 1, 2012 10:36:42 AM Ignore BuzzLOL Report Abuse .. Buy the octane level recommended by the engine manufacturer... no higher...
herbiepopnecker Champion Author British Columbia Posts:13,606 Points:2,507,305 Joined:Sep 2005	Message Posted: Nov 29, 2012 9:58:05 PM Ignore herbiepopnecker Report Abuse There's hardly any cars that need premium out there. You're wasting your money
sagnat Champion Author Riverside Posts:1,161 Points:309,400 Joined:Jun 2012	Message Posted: Nov 29, 2012 8:47:39 PM Ignore sagnat Report Abuse My '02 Benz calls for 91 Octane, anything less and it pings, that pinging can damage the pistons. So, yes the Benz gets premium. [Edited by: sagnat at 11/29/2012 8:48:53 PM EST]
BUSSY Champion Author Dallas Posts:9,912 Points:1,542,465 Joined:Oct 2006	Message Posted: Nov 29, 2012 9:52:06 AM Ignore BUSSY Report Abuse Your mechanic is wrong....find a new one.
MIT05 Champion Author Massachusetts Posts:4,172 Points:1,392,300 Joined:Aug 2008	Message Posted: Nov 28, 2012 3:34:17 PM Ignore MIT05 Report Abuse Use oem.
bluenvoy Champion Author Nashville Posts:14,977 Points:1,877,640 Joined:Oct 2005	Message Posted: Nov 28, 2012 10:05:55 AM Ignore bluenvoy Report Abuse Buying gas grades above what your engine requires is a waste of your money.
gasscout_1 Veteran Author Grand Rapids Posts:334 Points:111,440 Joined:Jun 2012	Message Posted: Nov 28, 2012 9:56:54 AM Ignore gasscout_1 Report Abuse NOT NOW
MertieMan Champion Author Lexington Posts:14,793 Points:2,896,585 Joined:May 2005	Message Posted: Nov 28, 2012 5:29:16 AM Ignore MertieMan Report Abuse If that particular engine is designed to run on 87 octane, then run 87 octane. A lot of mechanics are just part replacers.
PaylessKY Champion Author Kentucky Posts:8,730 Points:1,582,425 Joined:Oct 2008	Message Posted: Nov 28, 2012 12:40:37 AM Ignore PaylessKY Report Abuse Check the vehicles owners manual and use what it states. Does your mechanic also sell gasoline? Do you by from him? In any case I would use what the manual states. [Edited by: PaylessKY at 11/28/2012 12:42:01 AM EST]
middlegrey Rookie Author Wisconsin Posts:99 Points:428,175 Joined:Sep 2011	Message Posted: Nov 27, 2012 1:26:22 PM Ignore middlegrey Report Abuse Better question about premium: What happen to 93 Octane and isn't funny how 91 is more expensive than typically.
SNWDOG Rookie Author Montana Posts:1 Points:120 Joined:Nov 2012	Message Posted: Nov 27, 2012 12:18:12 PM Ignore SNWDOG Report Abuse Octane is probably the most misunderstood metric for gasoline. People believe it can affect power, efficiency, and longevity of the engine. Guess what--it can, but ONLY if your engine would knock (pre-ignite the fuel) with a given octane. An air-fuel mixture will spontaneously ignite at a certain pressure. Without getting into the chemistry of octane, a higher-octane fuel has a higher energy activation level. Therefore, you can compress a high-octane fuel more than a low-octane fuel before it will self-ignite. Pressure is the big factor here. At 6000 feet, the air is less dense, and therefore when the piston in your engine hits top dead center, the pressure of the fuel-air mixture is less than it is at sea level. Effectively, the higher altitude reduces the compression ratio of your engine, which is why you can run lower octane without pre-ignition (knocking), and things will be just fine. There is an exception: every vehicle made in the last 20 years has a knock sensor and a computer which controls various tuning parameters. If your engine was about to knock, the sensor would tell the computer, and the computer would do things like change the fuel mixture and retard the timing to keep it from knocking. THIS is where you lose power and efficiency. The problem is that you will never know this, since the computer will never let the engine knock. However, most engines with less than 10:1 compression ratio will run fine on 85 octane at 5000 feet. Your owner's manual might say to use only 89 or higher, but that was written from drivers at lower altitudes. You CAN run lower octane without loss of power or efficiency. Since your engine compute will prevent pre-ignition, the only way you can really know is to very carefully track your mileage over a long period of time, and see if you get lower MPG at 85 octane. Most will not. Some smaller, high-compression or turbo-charged engines do need 87 or 89 at higher altitudes, but most do not. Whew--probably too much information. Just don't be taken in by bogus claims that higher octane fuel will boost power or magically give you better MPG.
gasscout_1 Veteran Author Grand Rapids Posts:334 Points:111,440 Joined:Jun 2012	Message Posted: Nov 27, 2012 5:10:41 AM Ignore gasscout_1 Report Abuse Check your maunual.
2Tall Champion Author Maryland Posts:12,782 Points:2,942,355 Joined:Jun 2004	Message Posted: Nov 10, 2012 12:33:53 PM Ignore 2Tall Report Abuse Check Owners Manual
mightymoes Champion Author Boston Posts:10,762 Points:2,068,545 Joined:Aug 2007	Message Posted: Aug 13, 2012 1:04:48 AM Ignore mightymoes Report Abuse I can understand the gas companies conning us into using premium in a regular gas vehicle. They make more money. Why would a mechanic repeat the same old tales about premium being better? Get a new mechanic who has some knowledge.
CORNHICK All-Star Author Omaha Posts:597 Points:270,505 Joined:May 2008	Message Posted: Aug 13, 2012 12:34:36 AM Ignore CORNHICK Report Abuse thanks everyone for the advise
vikings80 All-Star Author South Dakota Posts:781 Points:110,065 Joined:Aug 2008	Message Posted: Jun 22, 2012 8:40:52 AM Ignore vikings80 Report Abuse I use 87.
Seamus4513 Champion Author Orange County Posts:2,583 Points:387,330 Joined:Mar 2012	Message Posted: Jun 22, 2012 8:40:10 AM Ignore Seamus4513 Report Abuse Follow mfr recommendations
MertieMan Champion Author Lexington Posts:14,793 Points:2,896,585 Joined:May 2005	Message Posted: Jun 22, 2012 8:27:32 AM Ignore MertieMan Report Abuse And guess what, your premium has ethanol in it also. Unless the manufacturer recommends premium you are totally wasting your money.
forresj Champion Author Wilmington Posts:2,789 Points:544,230 Joined:May 2005	Message Posted: Jun 22, 2012 7:49:16 AM Ignore forresj Report Abuse Are you buying gas from your mechanic? Need I say more? Dump your mechanic since he doesn't have your best interest in mind. I had my Honda accord for 23 years and I used only regular and changed my fluids regularly. [Edited by: forresj at 6/22/2012 7:54:32 AM EST]
bluenvoy Champion Author Nashville Posts:14,977 Points:1,877,640 Joined:Oct 2005	Message Posted: Jun 22, 2012 5:23:47 AM Ignore bluenvoy Report Abuse Use what ever you Impala's Owners Manual says to use. That's what your engine's designed to run on. Your mechanic is giving you bull.
jes Champion Author Pennsylvania Posts:16,170 Points:3,353,450 Joined:Jun 2003	Message Posted: Jun 22, 2012 4:58:55 AM Ignore jes Report Abuse Does your mechanic own the station you buy your gas at?
CORNHICK All-Star Author Omaha Posts:597 Points:270,505 Joined:May 2008	Message Posted: Jun 22, 2012 2:39:46 AM Ignore CORNHICK Report Abuse ya ok thanks ill just use the 87
CobraJ All-Star Author Tampa Posts:999 Points:376,205 Joined:Mar 2011	Message Posted: Jun 21, 2012 11:38:26 PM Ignore CobraJ Report Abuse Ditto to what everyone else said.
SalukiCO Sophomore Author Colorado Springs Posts:199 Points:242,545 Joined:Jun 2012	Message Posted: Jun 21, 2012 11:28:12 PM Ignore SalukiCO Report Abuse Anything over what the manufacturer recommends is just throwing money away. I doesn't help one bit.
maxstar Champion Author Chicago Posts:18,490 Points:810,520 Joined:Feb 2011	Message Posted: Jun 21, 2012 11:15:42 PM Ignore maxstar Report Abuse Check your owners manual and use the grade that it recommends. Using premium fuel when regular is called for seems like a waste of money.
WEPSMAN Champion Author South Dakota Posts:10,513 Points:2,024,175 Joined:Mar 2005	Message Posted: Jun 21, 2012 10:14:23 PM Ignore WEPSMAN Report Abuse It has some merit. I have checked mileage and if it pencils out to be cheaper per mile, I will run it. I usually run E-10 in my cars. My truck is a diesel and have been running B10. I like the B10 so far.
plans72 All-Star Author Ocala Posts:670 Points:676,435 Joined:Dec 2010	Message Posted: Jun 21, 2012 9:33:28 PM Ignore plans72 Report Abuse Use what the manufacturer says, just fattening the fat cats otherwise
carajul Rookie Author Las Vegas Posts:9 Points:280 Joined:May 2008	Message Posted: Jun 21, 2012 8:37:11 PM Ignore carajul Report Abuse One more thing to add... modern cars have knock ping sensors and adjust accordingly. My '91 cadillac pings so loud it sounds like a motorboat if I use 87 oct. The engine was built specifically for 91 oct. On a new Cadillac, however, the spark plug detination would be compensated by the knock sensor if the owner used 87. Your Impala will work fine on 87.
carajul Rookie Author Las Vegas Posts:9 Points:280 Joined:May 2008	Message Posted: Jun 21, 2012 8:27:12 PM Ignore carajul Report Abuse You need to get a new mechanic. The Impala owners guide says 87 oct. That's all you need. You are wasting your money. The 'only' thing higher oct gas does is burn slower. Its not cleaner or cooler. You're not helping your engine one bit, just Exxon's pockets.