Fuel
Tourer
Joined: Jul 2009
Posts: 354
Likes: 2
From: Toledo, Oregon
If I did my math correctly--
If the fuel hose has a 1 inch inside diameter and the hose length is 10 feet--
I calculated 42.24 ounces of low grade will be dispenced from the hose before
premium fuel is delivered to your tank.--Can anyone verify this using those dimentions?
R.
If the fuel hose has a 1 inch inside diameter and the hose length is 10 feet--
I calculated 42.24 ounces of low grade will be dispenced from the hose before
premium fuel is delivered to your tank.--Can anyone verify this using those dimentions?
R.
What about the fact that 1/2 or more of the hose is springloaded to a line that reels up the hose to drain...so only about half the hose has anything in it.
Also, here in Oregon we cannot start the pumps...the attendant has to start it and hands us the nozzle.....most guys will hold the hose down and pull the trigger before handing you the hose so as not to drip any fuel on your bike...only a few drops comes out of the nozzle when they do this.
So...there is only a little bit of the previous fuel in the hose.....
Cruiser
Joined: Oct 2008
Posts: 214
Likes: 0
From: Mooresboro NC
Once late at night I ran out of gas in the middle of nowhere and I walked untill I found a gas station. Just so happens it was closed. I found an old coke bottle and tried to drain enough gas to get my car to the gas station. Out of six pumps, I couldn't get enough gas to fill 1/4 of the bottle. I had heard that as soon as the pump is shut off, any remaining gas is vacumed out of the hose to prevent theft. I don't know if that is true or not, but there wasn't any gas left in those hoses that night. I found out by accident that the bike will run just fine on 87 Octane.
Mark
Mark
Last edited by mkbrower; Nov 7, 2009 at 07:05 PM.
Tourer
Joined: Jan 2009
Posts: 325
Likes: 0
From: Tennessee
If I did my math correctly--
If the fuel hose has a 1 inch inside diameter and the hose length is 10 feet--
I calculated 42.24 ounces of low grade will be dispenced from the hose before
premium fuel is delivered to your tank.--Can anyone verify this using those dimentions?
R.
If the fuel hose has a 1 inch inside diameter and the hose length is 10 feet--
I calculated 42.24 ounces of low grade will be dispenced from the hose before
premium fuel is delivered to your tank.--Can anyone verify this using those dimentions?
R.
Road Master
Joined: Feb 2009
Posts: 846
Likes: 30
From: Mile 49.5 Alaska Hwy. B.C.
First things first..............ok, first is always first
, I sell fuel, all of it, gas, diesel, jet fuel, methanol, VP Racing fuel, kerosene, ya all of it. The nozzle at yer favorite station or bulkplant is "pressure sensitive" there must be line pressure to get more than a drop of fuel out of it, yes the hose is full of the previous product up to the manifold in the dispenser, prolly like others have said, a liter or 2, or, a quart or 2 in American
, and it has very little effect on the actual octane unless you fill up at a place with a super long hose. Way too much for most of us to worry about unless you have some hi-po, hi compression rig! My bike doesn't care at all 'bout what octane it is as long as it's good fuel! Ride On!
, I sell fuel, all of it, gas, diesel, jet fuel, methanol, VP Racing fuel, kerosene, ya all of it. The nozzle at yer favorite station or bulkplant is "pressure sensitive" there must be line pressure to get more than a drop of fuel out of it, yes the hose is full of the previous product up to the manifold in the dispenser, prolly like others have said, a liter or 2, or, a quart or 2 in American, and it has very little effect on the actual octane unless you fill up at a place with a super long hose. Way too much for most of us to worry about unless you have some hi-po, hi compression rig! My bike doesn't care at all 'bout what octane it is as long as it's good fuel! Ride On!
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Advanced
Joined: Nov 2008
Posts: 76
Likes: 0
From: Texas
There are many variables to consider when using a lower octane fuel in an air cooled engine; altitude, temperature, humidity are just a few. I’ve run the lowest grade octane available in cold weather (South TX cold) with no problems whatsoever. Try that same fuel in summer time at 100+ degrees and high humidity and you’ll have noticeable performance issues. The amount of fuel left in the hose is negligible and I’m not concerned about it.
Elite HDF Member
Joined: Jun 2007
Posts: 3,873
Likes: 13
From: NW Arkansas
That is a very interesting thought that has never crossed my mind. I dont think it would be a big problem unless you are not close to being empty.
I would suggest you carry a little octane booster with you if your worried. If you have enough compression that a half gallon of regular mixed with 3 and a half gallons of premium will cause your bike to get detonation then you probly need octane booster anyway. It would offset the awful E85 gas that every station carrys anyway.
I would suggest you carry a little octane booster with you if your worried. If you have enough compression that a half gallon of regular mixed with 3 and a half gallons of premium will cause your bike to get detonation then you probly need octane booster anyway. It would offset the awful E85 gas that every station carrys anyway.
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