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Unitied 98 Boost Fuel
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Author:  1380 yellow devil [ Sat Jan 07, 2006 3:16 pm ]
Post subject:  Unitied 98 Boost Fuel
Has any one ever used this or had any experience with the fuel. I know it is a Ethnol blend but just wanted to know what if any problems you may have had.

I am thinking of giving it a go next time i Fuel up as it is a lot cheaper then BP Ulitmate with is the Only 98 Oct fuel that I have been able to get here.
Author:  jacks1071 [ Sat Jan 07, 2006 7:57 pm ]
Post subject:  Re: Unitied 98 Boost Fuel
1380 yellow devil wrote:
Has any one ever used this or had any experience with the fuel. I know it is a Ethnol blend but just wanted to know what if any problems you may have had.

I am thinking of giving it a go next time i Fuel up as it is a lot cheaper then BP Ulitmate with is the Only 98 Oct fuel that I have been able to get here.


I've run BP E10 in my Mazda RX8 with no problems. Today Tonight television show did a story on E10 and actually had a lot better milage than normal fuel, contradicting what the scientists say about ethanol having less power in it than fuel.

I don't know how ethanol would go in a mini though as the seals and fuel lines might not like it.

Jacks.
Author:  speedy [ Sat Jan 07, 2006 8:01 pm ]
Post subject: 
Some interesting reading on ethanol blended use in older cars, from http://www.fcai.com.au/ethanol.php/2005 ... 00005.html

REASONS WHY ETHANOL BLENDED PETROL IS NOT RECOMMENDED FOR USE IN SOME OLDER VEHICLES

Introduction

The following information outlines the key reasons why vehicle manufacturers do not recommend the use of any ethanol/petrol blended fuels in vehicles made before 1986. This information is also applicable to post-1986 vehicles listed as unsuitable to use ethanol blended petrol.

Ethanol has a number of important chemical and physical properties that need to be considered in a vehicle's design. Vehicles made before 1986 did not anticipate that ethanol would be blended with petrol and therefore were not designed for its use. These same vehicles are nearly twenty years old and the technology used has limitations when it comes to being able to compensate for the effects of ethanol. The materials in these vehicles have also been subjected to at least twenty years of wear and tear and are consequently more sensitive to the effects of using ethanol/petrol blended fuels.

Carburettor Equipped Engines

Vehicles made before 1986 vehicles were predominantly equipped with carburettors and steel fuel tanks.

The use of ethanol blended petrol in engines impacts the air/fuel ratio because of the additional oxygen molecules within the ethanol's chemical structure. The oxygen content of ethanol is 34.7% which causes the engine to run lean. Being a mechanical device for supplying fuel to an engine, carburettors have a limited ability to compensate for this additional air. The consequences of which are the potential for pre-ignition, which will not only impact driveability but may also lead to engine damage.

Vehicles with carburettor fuel systems may experience hot fuel handling concerns. This is because the vapour pressure of fuel with ethanol will be greater (if the base fuel is not chemically adjusted) and probability of vapour lock or hot restartability problems will be increased.

As a solvent, ethanol attacks both the metallic and rubber based fuels lines, and other fuel system components. Materials compatibility is a critical concern and unless the fuel system components have been selected on the basis of compatibility with ethanol, there is the serious risk of loss of function, resulting in the failure of plastic components in a fuel system.

Ethanol also has an affinity to water that can result in corrosion of fuel tanks and fuel lines. Rust resulting from this corrosion can ultimately block the fuel supply rendering the engine inoperable. Water in the fuel system can also result in the engine hesitating and running roughly.
Author:  Spaceboy [ Sat Jan 07, 2006 8:13 pm ]
Post subject: 
thanks for that, it explains it quite clearly to not use ethanol fuels in minis
Author:  jacks1071 [ Sat Jan 07, 2006 8:20 pm ]
Post subject: 
Spaceboy wrote:
thanks for that, it explains it quite clearly to not use ethanol fuels in minis


I'm not positive but pretty sure that servo can blend 5% without telling you about it so chances are you might already be using some.

Jacks.
Author:  speedy [ Sat Jan 07, 2006 8:29 pm ]
Post subject: 
I'm pretty sure you are right, however if you check the websites of the large oil companies (Shell, BP to name two) you will find that they have policies of clearly labelling their ethanol blends even though they are not required to.
Quote:
How will I know which Shell fuels have ethanol in them?

Any Shell fuel that has been formulated with ethanol will be clearly labelled at the pump.
Author:  brickworx [ Sat Jan 07, 2006 8:44 pm ]
Post subject: 
My wifes Rover - 1989 30th...
runs about 25% hotter when using ethanol blend fuel
Author:  tainted [ Sat Jan 07, 2006 8:52 pm ]
Post subject: 
FYI,

Shell Optimax Ultimate, 100 octane, runs well in the Moke, most of the lines have been replaced, just the steel tank to worry about, but seeing as this is now starting to suffer from age anf fatigue, not a serious problem.
Author:  simon k [ Sat Jan 07, 2006 10:14 pm ]
Post subject: 
remember a couple of years ago there was a bit of a media storm about fuel companies only being able to get one delivery of fuel out of a brand new tanker because of how corrosive the fuel was?.... ethanol

I was chatting to a group Nb racer at historic winton at the end of the day, and they were all draining their fuel tanks cos their fuel had a high ethanol content and would eat up the tank within a couple of days, nasty stuff
Author:  drmini in aust [ Sun Jan 08, 2006 7:57 am ]
Post subject: 
Somebody said here recently that ethanol ate their SU fuel pump diaphragm... :cry:
I'll stay away thanks... 8)
Author:  1380 yellow devil [ Mon Jan 09, 2006 12:42 pm ]
Post subject: 
Thanks Gus I think I will stay away form it to. I thought Menthol was the more corrisive one then ethnol. My Dad had used it years ago when you could buy it in McKay QLD and never had a once of trouble with it.
Author:  B Frank [ Mon Jan 16, 2006 1:45 pm ]
Post subject: 
If you want more info on Optimax Extreme check out the web site.....

www.100octane.com.au

There is a good FAQ section that may answer some of your questions.
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