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Author Topic: does anyone use higher octane to save fuel? Back to Topics
groddy86

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Richmond

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Message Posted: Apr 29, 2012 3:35:03 PM

I have heard both stories putting higher octane in a car/truck gives you better gas mileage and horsepower and also that you get worse mpg and harms engine putting in higher octane than what is recommended by manufacturer. Which one is true?
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GLM4205
Champion Author Toledo

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Message Posted: Jul 15, 2014 5:37:09 AM

Higher octane fuels deliver less fuel economy, not more.
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Mikeyl
Champion Author Cleveland

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Message Posted: Jul 14, 2014 6:47:10 PM

How would paying 40 cents more per gallon save money?
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pt1KY
Champion Author Lexington

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Message Posted: Jul 14, 2014 10:26:36 AM

no
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redfish67
Champion Author Dallas

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Message Posted: Jul 14, 2014 10:24:09 AM

it just costs you more money
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HideMKE
Champion Author Milwaukee

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Message Posted: Jul 14, 2014 9:26:13 AM

no
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MertieMan
Champion Author Lexington

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Message Posted: Jul 14, 2014 8:36:32 AM

Higher octane gas positively does not save fuel and will damage your intakes with prolonged use of it.
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puddy
Champion Author Wisconsin

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Message Posted: Jul 10, 2014 8:01:48 AM

no
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Boyrr
Champion Author Allentown

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Message Posted: Jul 2, 2014 9:08:58 AM

No, use what the mfg designed for
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Awing1
Champion Author Ontario

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Message Posted: Jul 2, 2014 7:30:24 AM

No, I'm using regular. How much gas can you save with Premium gas? You wouldn't save more than you paid for Premium gas.
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hoopitup2000
Champion Author Virginia

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Message Posted: Jul 2, 2014 6:21:44 AM

No, won't make a difference in my car
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GLM4205
Champion Author Toledo

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Message Posted: Jul 2, 2014 5:32:36 AM

No
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badbobKY
All-Star Author Lexington

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Message Posted: Jul 1, 2014 9:36:21 AM

reg
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twt
Champion Author Virginia Beach

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Message Posted: Jul 1, 2014 6:37:29 AM

Not smart. The difference in price, offsets the mileags.
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hoopitup2000
Champion Author Virginia

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Message Posted: Jul 1, 2014 6:30:53 AM

Only the un-informed
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dontuknowOH
Champion Author Ohio

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Message Posted: Jun 30, 2014 10:29:19 PM

No reason except on the one rod vehicle with a high compression character.
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carinthuist
Champion Author San Francisco

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Message Posted: Jun 30, 2014 7:28:17 PM

no
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luvmyrv
All-Star Author Winnipeg

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Message Posted: Jun 30, 2014 4:50:18 PM

Higher octane just rids your wallet of more money.
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eyegotgas2
Champion Author British Columbia

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Message Posted: Jun 30, 2014 3:01:02 PM

In my experience, higher octane does not save you fuel
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buickentury
All-Star Author Madison

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Message Posted: Jun 30, 2014 1:56:43 PM

I tried this years ago for a few tanks and found that the cost differential wasn't worth the savings - I think I averaged .5 mpg or something more.
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bacvain
Rookie Author Quebec

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Message Posted: Jun 30, 2014 11:33:18 AM

Unless specified by manufacturer, its a waste of money.

On the other hand, if its required, its essential to put high octane cause then you will consume more fuel. My Audi A6 did that when I accidently filled up regular once. The needle went down pretty quick. Premium would give me 200-250km more.
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davisadm
Champion Author Los Angeles

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Message Posted: Jun 30, 2014 10:39:46 AM

Unless your car is specifically designed for it, you will not save any fuel, but just throw money away.
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dave43
Champion Author Iowa

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Message Posted: Jun 29, 2014 6:49:49 AM

no
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Heavyblaze
All-Star Author Pennsylvania

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Message Posted: Jun 28, 2014 10:38:48 PM

no
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xbAG
Champion Author California

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Message Posted: Jun 28, 2014 8:39:01 PM

I have no clue.
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PaylessKY
Champion Author Kentucky

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Message Posted: Jun 28, 2014 2:51:53 PM

No, unless your vehicle requires premium, your not going to save on fuel by using it.
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weddy11
Champion Author Phoenix

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Message Posted: Jun 28, 2014 10:27:41 AM

No
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snuper
Rookie Author Los Angeles

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Message Posted: Jun 27, 2014 7:12:10 PM

No. I have to use 91 on my civic due to the custom engine work that bumped compression to 13:5:1 (without 91 my car would knock and idle rough)

On my motorcycle I run regular grade because the owners manual calls for regular
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hoopitup2000
Champion Author Virginia

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Message Posted: Jun 27, 2014 6:54:23 PM

No, won't make a differnce in most cases.
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dontuknowOH
Champion Author Ohio

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Message Posted: Jun 27, 2014 8:01:47 AM

I believe its worth repeating again, READ your manual... The modern vehicles have more ECM control over the engine/ A..transmissions, with additional control of camshaft function which is a newer advantage of being variable and not on the older engine versions.

The vast amount of info sensors let the ECM fell out more information about the engines duties and make tuning corrections as you drive. There may be a condition of something going wrong/starting to fail an that can relate to a CEL going on.

Often the problem is minor, Reading your manual won't explain everything but can clue you in to make a choice to follow up on getting back to where your ECM is keeping your engine tuned for both you/your vehicle demands.

Erratic operation is not good for any reason whether its a daily driver or pleasure, and then stranded is no fun either. Simply the modern vehicles of today do more for you automatically than the past models, run longer with less mechanical attention, but are self regulated to an extent, can be costly in the wrong repair hands. Like a misunderstood Woman sometimes! LOL! Guys! Diamonds are more expensive than auto parts even in the wrong repair facilities. Yey I know a piece of black tape blots the CEL light out clear back into the "80's-"

Run the correct fuel that helps keep off the CEL also, the other stuff will eventually go bad with time like breaking a pair of sun glasses, ice-maker, hot water heaters, light bulbs, fingernail clippers, Big List.....
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randy3116
Champion Author Tennessee

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Message Posted: Jun 27, 2014 6:48:42 AM

no
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Jackson126
All-Star Author Virginia

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Message Posted: Jun 27, 2014 5:39:45 AM

I use what mtg recommends
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bikemannc
Rookie Author North Carolina

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Message Posted: Jan 2, 2014 12:35:07 PM

how can paying much more for higher octane save you gas money? ahem...you are paying more for your fuel.
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PaylessKY
Champion Author Kentucky

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Message Posted: Jan 2, 2014 11:23:47 AM

No, I use 87 octane.
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twt
Champion Author Virginia Beach

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Message Posted: Jan 2, 2014 3:40:53 AM

I use what the manufacturer, recommends.
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carinthuist
Champion Author San Francisco

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Message Posted: Jan 1, 2014 11:35:55 PM

Yes have used on older car for more mpg
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Karisholman
Veteran Author Nevada

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Message Posted: Jan 1, 2014 10:35:08 PM

I like to track my mpg and try higher octane and keep track. I believe it does make a difference in my BMW X5 and our Honda CRV. The dealer of the Honda swore it wouldn't make a difference. I just tracked it myself and tried. The proof is in the pudding.
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ScottAdams5
Champion Author New York

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Message Posted: Jan 1, 2014 11:37:21 AM

Higher octane fuels deliver less fuel economy, not more.
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borsht
Champion Author Oakland

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Message Posted: Dec 31, 2013 12:23:50 AM

One doesn't buy higher octane to save on fuel. One buys higher octane to prevent detonation in high compression engines.
High compression ratios or turbocharged cars require higher octane than a standard engine does.
If your car is running fine on 87 Octane, buying higher octane does not provide greator fuel econnomy.
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carinthuist
Champion Author San Francisco

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Message Posted: Dec 27, 2013 1:01:12 AM

No
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dv8jane
Veteran Author Chicago

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Message Posted: Dec 26, 2013 9:07:52 AM

Unless the owner's manual states that premium is required, it is just a waste of money.
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BartandLisa
Champion Author Newfoundland

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Message Posted: Dec 25, 2013 12:52:56 PM

No
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stonejd
Champion Author Illinois

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Message Posted: Dec 7, 2013 12:10:39 AM

No
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ScottAdams5
Champion Author New York

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Message Posted: Dec 7, 2013 12:01:15 AM

Higher octane fuels deliver less fuel economy, not more.
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outlaw329
Champion Author Austin

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Message Posted: Dec 5, 2013 9:52:07 PM

Waste of money
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randy3116
Champion Author Tennessee

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Message Posted: Dec 5, 2013 8:09:25 AM

my car requires premium
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hoopitup2000
Champion Author Virginia

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Message Posted: Dec 5, 2013 7:54:40 AM

Unless the owners manual states that premium is required, it is just a waste of money.
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contiki
Champion Author Ontario

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Message Posted: Dec 5, 2013 7:43:04 AM

Putting higher octane in a car or truck that is meant to use regular gas is wasting your money and could also do harm to your vehicle..........

You won't save on fuel either because the higher expense won't justify the savings in fuel, if there is any............

[Edited by: contiki at 12/5/2013 7:44:48 AM EST]
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pinbuster2005
Champion Author New Hampshire

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Message Posted: Dec 5, 2013 2:47:24 AM

oilerfan - That is true. in order to make up the price difference between regular & plus or super you'd have to gain a lot in fuel economy.

for example if you get 30 mpg with regular at $3.30/gal that is a cost per mile of 11.0 cents.

Going by a 20 cent a gallon margin between grades (seems to be the average) To just break even with mid grade at $3.50/gal you'd have to get 31.82 mpg or a 6% increase in fuel economy.

To break even with super at $3.70/gal you'd have to get 33.64 mpg or a 12.1% increase in fuel economy.

Granted When I had my '85 escort and my '84 aries wagon with carborated engines my fuel economy was 20% higher with super in the escort and 20.6% higher in the aries than it was running regular but also at that time the difference between the prices was only about 15-20 cents not 40-50 cents like it is today so it made running super worth it.

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Boyrr
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Message Posted: Dec 4, 2013 12:25:27 PM

i use it because the machine needs it
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metalhat73
Champion Author Wilmington

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Message Posted: Dec 4, 2013 10:37:14 AM

2011 Insight. I tested Shell premium and watched my MPG drop some 10percent and the car was still slow as hell. Just a waste of money. Running on regular with 141,000 miles and engine is running smooth.
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