Gen 3 87 octane????? Is this really a thing?

Thats a very good question - if it is anything like any of my other high performance machines around the farm the only thing that suffers is your power. You cannot expect to get maximum power or I think they call it detonation on 87 octane but what you get is likely fine for most. I do not know the long term issues possibly caused, but noting that, I also have been stuck on rides where there is nothing else and things seem to be fine for short term few tanks - no pinging or anything.

Price of fuel here now for premium is $2.08 a litre versus $1.72 for reg
 
Cannonball Rides said:
Thats a very good question - if it is anything like any of my other high performance machines around the farm the only thing that suffers is your power. You cannot expect to get maximum power or I think they call it detonation on 87 octane but what you get is likely fine for most. I do not know the long term issues possibly caused, but noting that, I also have been stuck on rides where there is nothing else and things seem to be fine for short term few tanks - no pinging or anything.

Price of fuel here now for premium is $2.08 a litre versus $1.72 for reg
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If your engine is experiencing detonation or pinging you are in the process of destroying your engine. Some cars will allow you to run lower octane and if they experience detonation they will retard the timing. Always run what the manufacturer states in the manual. Also, running higher octane fuel in an engine that doesn't call for it is a waste of money.
 
So basically your suggesting run 91 octane as the oem has built it for said levels. Silver or mid- grade with up to 5% ethanol ? This would be by design to be efficient with this, adding or topping out with 93 octane is essentially spending an additional in most cases of upwards to 15 cents per litre with no notable gain whatsoever?
 
sixpack577 said:
If the dyno shows it running well on 87, then there shouldn't be a problem.
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If I’m remembering correctly- Higher octane is better, and needed with higher compression/altered performance engines more than your bog-stock mill.
Back in the days of the beginnings of engine management systems their ability to change timing to account for detonation was minimal. (Still remember when lead additives were a thing needed for cars after the nationwide change)

Suzuki tunes these guys, and certifies them with the EPA/Euro agencies with the octane amount that assures their performance claims and the regulatory agencies needs are met.

Running any of the pump fuels from reputable producers nowadays shouldn’t produce any long term harm to a stock mill. (<- IMHO…I’m an RN, not an engineer) I think all you could see would be reduced HP & torque on the dyno, unsure if the butt-o-meter would pick up on it at all. I know I probably wouldn’t know…although I haven’t cracked the throttle on mine yet on the road, my Gen 1 was way more than enough for me and my skills.
 
@sgerry higher octane is not better, higher octane just doesn’t detonate sooner under compression, a lower octane will always produce more hp but then you get the problem of pre detonation causing a knock.

also people think higher octane has more “additives” that clean blah blah that isn’t true either and most fuel you get at a station is never 91 or 92 octane etc it is usually lower, the only way to test octane is with a very expensive machine or a lab. This is the reason I run 50 premium and 50 av gas.
 
JeffSyh said:
@sgerry higher octane is not better, higher octane just doesn’t detonate sooner under compression, a lower octane will always produce more hp but then you get the problem of pre detonation causing a knock.

also people think higher octane has more “additives” that clean blah blah that isn’t true either and most fuel you get at a station is never 91 or 92 octane etc it is usually lower, the only way to test octane is with a very expensive machine or a lab. This is the reason I run 50 premium and 50 av gas.
Click to expand...
Meant to read- better FOR/needed in higher compression engines as it relates to detonation.
 
JeffSyh said:
@sgerry higher octane is not better, higher octane just doesn’t detonate sooner under compression, a lower octane will always produce more hp but then you get the problem of pre detonation causing a knock.

also people think higher octane has more “additives” that clean blah blah that isn’t true either and most fuel you get at a station is never 91 or 92 octane etc it is usually lower, the only way to test octane is with a very expensive machine or a lab. This is the reason I run 50 premium and 50 av gas.
Click to expand...
So in reality, there is no difference between regular and premium fuel?

Why does Suzuki recommend 93 octane for the Hayabusa if the difference in octane is a myth?

If I look at the pump, it tells me bronze fuel (regular) is higher in ethanol than gold (premium)..I only use premium in all my small engines just because of the ethanol content.
 
Bumblebee said:
So in reality, there is no difference between regular and premium fuel?

Why does Suzuki recommend 93 octane for the Hayabusa if the difference in octane is a myth?

If I look at the pump, it tells me bronze fuel (regular) is higher in ethanol than gold (premium)..I only use premium in all my small engines just because of the ethanol content.
Click to expand...
Ethanol, at least in the US is congressionally mandated. Ties into the constituents and crops, “economy stimulating”.

When I worked at Chevron refinery back in the day we had a fire that shut down our ability to produce gasoline. We bought premium gas from Shell down the street, we would climb up on the Chevron tankers that were going out to the gas stations and dump in a bucket or two (can’t remember) of Techron…per ISO standards and industry standards- all base gases (regular, mid, premium) should be very close to homogenous, within each category.

Gas is a blend of chemicals, and the refinery will blend to a base octane- and then add ethanol to reach the desired octane rating, the add their special detergents.

Stihl and some other small engine manufacturers don’t recommend more than 10% ethanol. It attacks rubber seals and in certain small engines it can cause major issues over time. Ethanol is also hydrophyllic- attracts water.

Unless an engine requires it, wasted $ some say.

90 minimum on my frame sticker.
 
Bumblebee said:
So in reality, there is no difference between regular and premium fuel?

Why does Suzuki recommend 93 octane for the Hayabusa if the difference in octane is a myth?

If I look at the pump, it tells me bronze fuel (regular) is higher in ethanol than gold (premium)..I only use premium in all my small engines just because of the ethanol content.
Click to expand...
There is but most of the gas you get isn’t always 93, it’s a myth that premium has “cleaning” qualities.
 
sgerry said:
Ethanol, at least in the US is congressionally mandated. Ties into the constituents and crops, “economy stimulating”.

When I worked at Chevron refinery back in the day we had a fire that shut down our ability to produce gasoline. We bought premium gas from Shell down the street, we would climb up on the Chevron tankers that were going out to the gas stations and dump in a bucket or two (can’t remember) of Techron…per ISO standards and industry standards- all base gases (regular, mid, premium) should be very close to homogenous, within each category.

Gas is a blend of chemicals, and the refinery will blend to a base octane- and then add ethanol to reach the desired octane rating, the add their special detergents.

Stihl and some other small engine manufacturers don’t recommend more than 10% ethanol. It attacks rubber seals and in certain small engines it can cause major issues over time. Ethanol is also hydrophyllic- attracts water.

Unless an engine requires it, wasted $ some say.

90 minimum on my frame sticker.
Click to expand...
I always to to the local Shell station and their gold (premium) fuel is ethanol free

Their bronze (regular) is 10% ethanol...
 
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