[chinesespareribs]

please delete.

[chinesespareribs]

https://www.youtube.com/watch?v=FPPkPAbzwbU

something to watch

[zilley]

still gonna use 94.

[Manic!]

Still gonna use 91 in my V10.

[123654123]

thread of the year 2015

[trollguy]

quit crying

nobody cares

[6o4__boi]

OP still doesn't get Chinese spare ribs?
I'll hook u up :troll:

[Jmac]

I was hoping to learn something in that video ... The only thing it reinforced was that the general public is as ignorant about gasoline as they are about almost everything else.

[AstulzerRZD]

Interestingly enough, some modern vehicles can and will react to higher octane gasoline.

"Subsequent discussions with GM powertrain big wigs ... revealed that small turbo engines are especially sensitive to octane in high load situations and hot weather."

The Ultimate Hot Weather MPG Test - Regular vs. Premium - 2011 Chevrolet Cruze LTZ Long-Term Road Test (http://www.edmunds.com/chevrolet/cruze/2011/long-term-road-test/2011-chevrolet-cruze-ltz-the-ultimate-hot-weather-mpg-test---regular-vs-premium.html)

As well, even the J30A4/J35A4s react to 91 octane - It's recommended in the Pilot's owner's manual to use premium when towing, recommended for 7th gen V6 manual coupes to reduce knocking, and the Honda V6 Engineer is quoted mentioning an extra 10hp on premium for 7th gen Accords.

"although Accord's will jump 10 horsepower or so on premium, V-6's chief engineer Yusuaki Asaki says"

USATODAY.com - New Accord: Nicest mainstream car on the market (http://usatoday30.usatoday.com/money/autos/reviews/2002-08-01-accord_x.htm)

[SupraTTturbo2jz]

Interestingly enough, some modern vehicles can and will react to higher octane gasoline.

"Subsequent discussions with GM powertrain big wigs ... revealed that small turbo engines are especially sensitive to octane in high load situations and hot weather."

The Ultimate Hot Weather MPG Test - Regular vs. Premium - 2011 Chevrolet Cruze LTZ Long-Term Road Test (http://www.edmunds.com/chevrolet/cruze/2011/long-term-road-test/2011-chevrolet-cruze-ltz-the-ultimate-hot-weather-mpg-test---regular-vs-premium.html)

As well, even the J30A4/J35A4s react to 91 octane - It's recommended in the Pilot's owner's manual to use premium when towing, recommended for 7th gen V6 manual coupes to reduce knocking, and the Honda V6 Engineer is quoted mentioning an extra 10hp on premium for 7th gen Accords.

"although Accord's will jump 10 horsepower or so on premium, V-6's chief engineer Yusuaki Asaki says"

USATODAY.com - New Accord: Nicest mainstream car on the market (http://usatoday30.usatoday.com/money/autos/reviews/2002-08-01-accord_x.htm)

i did that for my 7th gen accord. Will it apply as well for 8th gen manual v6?

[Richard-ATOM]

But my car's instruction book says I should use 91, otherwise it would probably damage the engine. So why should I take the risk?

[a00755836]

i seriously watched so many of these videos featuring the same topic that has exactly the same answers in the end. waste of time.

i'm still putting 91 in my car.

[nabs]

BRB filling diesel in my car

[GabAlmighty]

86 sees regular because it's N/A
ST sees 89 because it's boosted.

[AstulzerRZD]

i did that for my 7th gen accord. Will it apply as well for 8th gen manual v6?

I'm not sure if these results are conclusive in any way, but it looks like the 8th gens get a bit of a boost as well. There's a dyno chart in the link showing about 10hp and 10tq on the high end

The Temple of VTEC - Honda and Acura Enthusiasts Online - Articles - Lows and mids: Dyno Test #2: Now With 93 Octane Gasoline (http://www.vtec.net/articles/view-article?article_id=714997&page_number=2)

[hk20000]

depends on the car really.... I put regular in my Maxima because that's what the manual says I can use. But I put premium in my G35 even though it's only "recommended".... but both cars run on the VQ35DE engine...

I ran 87 on the G35 once before it knocked the hell out of it even on day to day operation. noticeable mostly on uphill pulls and when the engine is lugged.

[LenovoTurbo]

Use whatever octane your car is tuned to. If it's tuned for 87, run 87.

If you decide to use 94, 97 race gas jet fuel or whatever when it's not tuned for...then you just ballin out of control.

[smoothie.]

my accord loves 91/94, but is fine on 87.

butt dyno feels the difference for sure.

and obvs no ethanol plz

[Akinari]

Use whatever octane your car is tuned to. If it's tuned for 87, run 87.

If you decide to use 94, 97 race gas jet fuel or whatever when it's not tuned for...then you just ballin out of control.
This has always been a question of mine though. The gas companies claim to put in more additives in their premium gasolines, so theoretically speaking if one chooses to use premium gasoline in their vehicles that only require 87, would they theoretically be protecting the engine better given the higher level of additives (cleaning agents) as well as the higher detonation point of higher octane fuel reducing the chance of knock? Someone school me on this!

[hotong]

my 1996 corolla loves 94.

[Reeyal]

If the car manufacture states that your model of vehicle doesn't require higher octane fuel, why use higher octane fuel. Just read the owner's manual. It will tell you if you require or recommend other than regular gas. Require is pretty self explanatory. Recommend, it is truly up to you if you want to spend more money on gas.

[european]

94

[Hot Karl]

lol @ the 94. 94 is shit. shell nitro is where it's at.

or wa92

[IMASA]

91 or 94, doesn't matter to me when I add 25% E85 mixture.

[NNT]

use 87 on my Mazda, use 94 on my bikes because of the no Ethanol content

[Zoomy]

My Saab can deal with 87, but it boosts higher and feels quicker on 94. The Volvo with the high compression ratio and the turbo needs 94 or in a pinch 91 to prevent knocking. I prefer to use 94 mainly due to the no ethanol content and hopefully slow the deterioration of the fuel lines that ethanol causes.

[GotRice?]

my 95 corolla i had b4, i used to run 87 but it knocks, tried 91 and higher and it quiet the car right down... and they said no difference? that is bs... my Sentra Spec V had noticeable difference in power even just between 91 and 94 octane... i am not gonna risk my Lexus when it recommends premium only...

[Yodamaster]

It's as simple as the compression of your engine and conditions under which you drive, higher compression engines require higher octane gasoline. It's not rocket science, don't bother paying for 91 if you don't need it. The owner's manual for my S10 states that 87 is fine, my old Jetta had a label on the gas cap that said to use 91 octane ONLY.

[asian_XL]

I only put 94 in my Honda lawn mower

[ilovebacon]

so conclusion of this thread is that all grades are about the same quality?

[underscore]

This has always been a question of mine though. The gas companies claim to put in more additives in their premium gasolines, so theoretically speaking if one chooses to use premium gasoline in their vehicles that only require 87, would they theoretically be protecting the engine better given the higher level of additives (cleaning agents) as well as the higher detonation point of higher octane fuel reducing the chance of knock? Someone school me on this!

Technically yes, octane rating is resistance to knock so higher octane means less chance of knock. The only time increasing octane will help the vehicle is if it's knocking with the lower octane. But increasing it further won't do anything more for the car, you're wasting money by adding protection that wouldn't be needed.

Here's an example, if you have a car that weighs 2000lbs and you try to lift it with an 1800lb jack, it's likely to fail (knock). If you have a jack rated for 2200lbs it will lift it no problem. So there's no point buying a 2500lb jack or a 3000lb jack because you're just adding to a margin that isn't needed.

[tinico]

My opinion,
1- could be those with the older vehicles see a difference due to carbon build-up and/or blow-by (since the vehicles are older, more wear on the engine) creates hot spots in the combustion chamber that cause the engine to not run properly (pre-ignite or knock, you don't necessarily hear or feel it) and the higher octane fuel "band-aids" the situation.
2- In a newer healthy engine, higher octane will make you car run differently, loose power and may lead to deposit build up in the engine due to the unburned higher octane fuel your engine/ecu isn't designed to be working with
3-I encourage everyone to try different fuel brands, check your current consumption, then try a different brand same octane, check your consumption again, repeat with another brand. You'd be surprised how it can affect your vehicle.

4- It's your vehicle, feel free to fill it with whatever you want, whatever makes you happy