Fuel that burns.

Quote from: pave_spectre on March 09, 2013, 05:07:52 AM
Fuel that burns.

You're crazy!!! 

Quote from: Twisted on March 09, 2013, 05:14:24 AM

Quote from: pave_spectre on March 09, 2013, 05:07:52 AM
Fuel that burns.

You're crazy!!! 

lmao

Here we go 
Just get regular

Use regular 87 octane gas and Rotella T 15W-40 oil, the winning GS500 combo. 

This is a very legitimate question that everyone has asked. Its a good thing to wonder and question stuff that other people consider common knowledge i.e. the earth being square. I asked this same question and decided for myself that the cheapest is good for me but i only fill up at shell. Just personal preference. I was under the impression that ethanol was fine for to use as fuel even better in the newer vehicles.

Quote from: gsJack on March 09, 2013, 10:44:25 AM
Regular 87 octane gas with Rotella T 15W-40 oil, the winning GS500 combo. 

You got a two stroke GS?

Quote from: Twisted on March 09, 2013, 03:04:39 PM

Quote from: gsJack on March 09, 2013, 10:44:25 AM
Regular 87 octane gas with Rotella T 15W-40 oil, the winning GS500 combo. 

You got a two stroke GS?

Not sure, it originally was a 4 stroke but at 97k miles it's acting more like a 2 stroke in consumption.   

Shell V Power 98 gives my bike that little extra. Better throttle response over 92 or 95.

Run higher octane fuel if you can get it from a pump that uses a separate hose for each rating.  If you're using a shared pump (three grades through one hose) you're getting up to a 1/2 gallon of whatever last ran through it.  Not a big deal with the GS (87 is okay and it has a decent sized tank) but it counts with bikes that like the good stuff and have a small tank.  Some (high compression engine) scooter owners are hyper aware of this.

Aussie Fuel Octane rating

Regular unleaded petrol (ULP) 91

Premium unleaded petrol (PULP) 95

High-performance premium unleaded petrol
(Optimax, Synergy 8000, Ultimate, Vortex 98) 98

These are the Australian standards and requirements

Thanks rharding91 thought the same... camsGS500E we are on the the same page, thought as much.. Thanks all for the feedback!

Quote from: rharding91 on March 08, 2013, 09:33:42 PM

Quote from: weedahoe on March 08, 2013, 06:55:42 PM
I use 93 because I keep extra cans full of fuel and my truck is custom tuned for 93. I rarely go to a fuel station but if I do, then I will add 89. I never put 87 in anything.

Took this off web

Octane is the level of energy the fuel contains it is an additive put in gas at the refinery.

this is going to sound weird but it is true here we go.

87 octane regular gas explodes easier than 91 octane.

However 91 octane contains more energy once it has been exploded, this is why if you have a pinging vehicle when you hit the gas or go up hills they say use 91 octane. The Gas is harder to make ignite in the cylinder than the 87 therefor eliminating the ping or pre ignition.

Any vehicle can run on the higher octane fuel with no problems at all, however if the vehicle was meant to run on 87 octane you are more or less wasting money putting in the higher octane gas. That said if you are having pre ignition issues with the engine or pinging going up hills pulling etc... you may need higher octane gas to eliminate this but only for that reason.

The simple answer look in the owners manual of the vehicle and it will tell you what octane level of gas your car needs.

this is incorrect. there is no more energy in 91, 93, or 103. the higher octane is to prevent detonation, and killing engines, in higher compressions. since the gs is not an ultra high compression engine, it doesn't need it. there is no more power.

I find I get much better fuel economy on all my bikes with the higher octane fuel

Really?   What kind of bikes??

An engine designed to run on "regular" cannot and will not get better mileage on high octane...

But, an engine designed to run on high octane, will get worse mileage on too low octane....

Some cars are designed to run on either regular or higher octane...but the computer senses and adjusts...and you will get very slightly more mileage on high octane  (if all other factors remain unchanged) .....because the computer "tunes" the engine......and an engine "tuned" for high octane is slightly more efficient. (compression ratio and timing, etc)

As for the GS 500...the only gas I would see improving mileage would be ethanol free gas.  (since it takes roughly 2 times the amount of ethanol to produce the same power as gasoline.......so 10% ethanol in gas should reduce fuel economy by about 5 %......

There are so many factors which can change gas mileage significantly that without controlled experiments, it is impossible to determine if small factors have any effect.  (example...I sometimes drive a company car...I get 32 to 34 MPG consistently.........when the other guys drive the same car, I see the mileage is at 25 to 27 MPG........simply driving style! ... that's like 25% variation!!)

If you are really interested...you can search the GS 500 on fuelly.com.........and you will see wide swings in mileage among different riders and even with the same rider under differing conditions......

But if you "think" high test gives you better mileage..have at it....the oil companies love you!


Cookie

Quote from: codajastal on March 10, 2013, 06:16:33 AM
I find I get much better fuel economy on all my bikes with the higher octane fuel

Quote from: twocool on March 10, 2013, 06:32:24 PM
Really?   What kind of bikes??

An engine designed to run on "regular" cannot and will not get better mileage on high octane...

But, an engine designed to run on high octane, will get worse mileage on too low octane....

Some cars are designed to run on either regular or higher octane...but the computer senses and adjusts...and you will get very slightly more mileage on high octane  (if all other factors remain unchanged) .....because the computer "tunes" the engine......and an engine "tuned" for high octane is slightly more efficient. (compression ratio and timing, etc)

As for the GS 500...the only gas I would see improving mileage would be ethanol free gas.  (since it takes roughly 2 times the amount of ethanol to produce the same power as gasoline.......so 10% ethanol in gas should reduce fuel economy by about 5 %......

There are so many factors which can change gas mileage significantly that without controlled experiments, it is impossible to determine if small factors have any effect.  (example...I sometimes drive a company car...I get 32 to 34 MPG consistently.........when the other guys drive the same car, I see the mileage is at 25 to 27 MPG........simply driving style! ... that's like 25% variation!!)

If you are really interested...you can search the GS 500 on fuelly.com.........and you will see wide swings in mileage among different riders and even with the same rider under differing conditions......

But if you "think" high test gives you better mileage..have at it....the oil companies love you!


Cookie

Well as a matter of FACT our lower octane fuel HAS ethanol in it so you have just proved that I am correct in assuming I get better milage!!
Thanks for proving me right.
Oh and FYI, I do the exact same amount of kms for work every day and when I use the lower octane fuel I get 2 days use
BUT when I use the higher octane fuel I get 2 1/2 days. EVERYTIME.

Went into the dealer today.. I pick up my new bike tomorrow    Asked him what fuel should I put in it (GS 500)... He said premium 95 or 98 octane.. Why i asked, he said the bike will run better and get better fuel economy .. Which all along I have thought this as any car I have owned has always run better and received better fuel economy by using premium (higher octane) fuel.. Same with the boats I've owned over the years.

Quote from: peterscotts on March 10, 2013, 11:57:09 PM
Went into the dealer today.. I pick up my new bike tomorrow    Asked him what fuel should I put in it (GS 500)... He said premium 95 or 98 octane.. Why i asked, he said the bike will run better and get better fuel economy .. Which all along I have thought this as any car I have owned has always run better and received better fuel economy by using premium (higher octane) fuel.. Same with the boats I've owned over the years.

EXACTLY
My mechanic told me the same thing.
Maybe it just an Aussie thing?

Must be codajastal .... The thing is, it does make a diference, well it has on any motor I've put in in! 

Quote from: peterscotts on March 11, 2013, 12:38:52 AM
Must be codajastal .... The thing is, it does make a diference, well it has on any motor I've put in in! 

Yep same here!
Maybe our fuel is different to US fuel??
I have no idea.