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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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nascar44
Rookie Author New Orleans

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Message Posted: Dec 16, 2014 1:16:09 PM

NO! IF YOUR VEH DOES NOT NEED IT THEN WHY SPEND THE MONEY? If you keep your veh in tune,tp's up. Then your mpg's will be up where they should be....
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GasMiser718
Champion Author Detroit

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Message Posted: Dec 9, 2014 4:53:07 PM

I use regular 87 octane, that's what the manufacturer recommends.
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Foolingurself
Rookie Author California

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Message Posted: Dec 7, 2014 3:08:50 PM

Higher octane was never designed to save fuel, it's designed for high compression engines. If your owners manual doesn't suggest it, don't use it.
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mybigtruck
Champion Author San Jose

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Message Posted: Dec 7, 2014 2:14:40 AM

neither are true. the only benefit is bumping up gas company profits if your car doesn't need it
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BCNU
Champion Author British Columbia

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Message Posted: Dec 6, 2014 4:23:13 AM

no
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GasMiser718
Champion Author Detroit

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Message Posted: Dec 6, 2014 1:00:42 AM

No
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hoopitup2000
Champion Author Virginia

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Message Posted: Nov 30, 2014 11:47:14 AM

No, it doesn't help fuel economy
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dontuknowOH
Champion Author Ohio

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Message Posted: Nov 30, 2014 7:35:59 AM

Only like if it costs more, I would use less of it, and I realize the difference, so I don't, and my vehicle doesn't mind.
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RalphHightower
Champion Author South Carolina

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Message Posted: Nov 30, 2014 7:26:14 AM

no
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Alexi7
All-Star Author Ohio

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Message Posted: Nov 30, 2014 1:11:53 AM

Higher octane doesn't save you fuel, only takes advantage of an engine's higher compression ratio. Won't hurt today's motors; just an unnecessary expense.
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Mizzer1
Champion Author Worcester

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Message Posted: Nov 30, 2014 12:22:09 AM

no
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RealtorJeff
All-Star Author San Diego

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Message Posted: Nov 29, 2014 6:38:30 PM

No, not worth the extra cost
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JohnCur
Veteran Author New Jersey

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Message Posted: Nov 29, 2014 6:05:54 PM

I used to have a 1987 Cutlass that actually got significantly better mileage with 89 octane. It was a push economy wise but I thought the better fuel was good for the engine.
some new cars are now coming out recommending 89
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redfish67
Champion Author Dallas

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Message Posted: Nov 29, 2014 2:27:58 PM

waste of money
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GasMiser718
Champion Author Detroit

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Message Posted: Nov 29, 2014 12:22:39 PM

No
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badbobKY
All-Star Author Lexington

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Message Posted: Nov 21, 2014 6:34:21 AM

no
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Boyrr
Champion Author Allentown

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Message Posted: Nov 21, 2014 6:27:59 AM

higher octane fuel is not a fuel saving device
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GLM4205
Champion Author Toledo

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Message Posted: Nov 21, 2014 5:40:08 AM

What for?
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twt
Champion Author Virginia Beach

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Message Posted: Nov 21, 2014 3:23:31 AM

Go with the suggested MFG octane.
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poetdog73
Champion Author Toledo

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Message Posted: Nov 21, 2014 12:14:18 AM

no
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Nuzan
All-Star Author Nevada

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Message Posted: Nov 20, 2014 8:40:55 PM

No difference
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zippok
Veteran Author Twin Cities

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Message Posted: Nov 20, 2014 11:43:09 AM

I find no difference unless I buy gas without 10 ethanol.
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GasMiser718
Champion Author Detroit

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Message Posted: Nov 16, 2014 8:25:55 AM

I use what the manufacturer suggests. 87 octane
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twt
Champion Author Virginia Beach

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Message Posted: Nov 14, 2014 3:16:05 AM

Go with the recommended octane.
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PaylessKY
Champion Author Kentucky

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Message Posted: Nov 13, 2014 8:10:49 PM

No
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one800rv
Rookie Author Florida

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Message Posted: Nov 9, 2014 1:26:15 PM

lowest octane rating where the engine still runs smooth. higher octane rating does not save fuel. even if it did it would not make up the difference in the higher cost of the fuel.
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hoopitup2000
Champion Author Virginia

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Message Posted: Nov 9, 2014 11:44:39 AM

Only the uninformed would do this. . . . . .
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forestghost07
Champion Author Miami

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Message Posted: Nov 8, 2014 11:30:26 PM

higher octane is fed to my 2 classic cars w/ high compression motors, to avoid spark knock (pinging), not for economy
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hoopitup2000
Champion Author Virginia

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Message Posted: Nov 8, 2014 6:00:50 PM

Nope, doesn't help
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LibertyGuardian
Veteran Author Arizona

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Message Posted: Nov 8, 2014 11:43:12 AM

"it's a myth"

.....

Exactly...debunked years ago the myth seems to live on as there's sufficient enough gullible lamebrains willing to blow their money on about anything anyone tells them to keep the myth alive and well.

As the old saying goes: "Sometimes you just can't fix stupid".
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badbobKY
All-Star Author Lexington

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Message Posted: Nov 8, 2014 10:33:00 AM

no
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DaddyD302
All-Star Author Milwaukee

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Message Posted: Nov 8, 2014 3:35:40 AM

Even if it was true the higher cost offsets any savings.
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speedfreek
Rookie Author Edmonton

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Message Posted: Nov 6, 2014 8:44:38 AM

I use higher octane than required to avoid ethanol in fuel. I then later had my ecm reprogrammed for higher octane though...
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GasMiser718
Champion Author Detroit

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Message Posted: Nov 5, 2014 1:30:45 PM

No I put in what the book calls for.
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GLM4205
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Message Posted: Nov 4, 2014 6:31:09 AM

No
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Mikeyy1960
Veteran Author Cape Coral

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Message Posted: Nov 3, 2014 6:56:59 PM

neither is true. use what is recommended in manual
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redfish67
Champion Author Dallas

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Message Posted: Nov 3, 2014 9:50:54 AM

it's a myth
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hoopitup2000
Champion Author Virginia

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Message Posted: Nov 3, 2014 6:29:45 AM

Nope, will only make your wallet thinner.
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mightymoes
Champion Author Boston

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Message Posted: Nov 3, 2014 1:56:57 AM

How many topics on this subject do we need! All major publications and manufacturers will tell you to put the recommended grade in your vehicle.
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d_clark
Champion Author Grand Rapids

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Message Posted: Nov 2, 2014 9:38:44 PM

No.
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badbobKY
All-Star Author Lexington

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Message Posted: Nov 2, 2014 1:18:01 PM

no
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carinthuist
Champion Author San Francisco

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Message Posted: Nov 2, 2014 12:06:51 PM

no
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HideMKE
Champion Author Milwaukee

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Message Posted: Nov 2, 2014 11:19:06 AM

no
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redfish67
Champion Author Dallas

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Message Posted: Nov 2, 2014 10:54:54 AM

no
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GasMiser718
Champion Author Detroit

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Message Posted: Nov 2, 2014 10:29:27 AM

No.
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weddy11
Champion Author Phoenix

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Message Posted: Oct 30, 2014 9:41:43 AM

No
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badbobKY
All-Star Author Lexington

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Message Posted: Oct 30, 2014 9:23:38 AM

no
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LibertyGuardian
Veteran Author Arizona

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Message Posted: Oct 30, 2014 8:16:05 AM

"higher grade fuel is for high compression engines. It's a waste of money otherwise."

.....

Exactly...
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OilerFan
Champion Author Tulsa

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Message Posted: Oct 30, 2014 7:17:30 AM

higher grade fuel is for high compression engines. It's a waste of money otherwise.
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calypso93
Champion Author Scranton

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Message Posted: Oct 30, 2014 6:21:22 AM

I don't.
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PaylessKY
Champion Author Kentucky

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Message Posted: Oct 28, 2014 9:11:13 AM

No, use what the manual states you should use.
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