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Posted by diggerfrance - Created: 4 years ago
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10 replies (Showing replies: 1 to 10)

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Posted by diggerfrance - 4 years ago

Thanks for all your replies.

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Posted by JohnP-390097 - 4 years ago

I totally agree. Any problems you are likely to encounter are not going to become immediately apparent. If you run  an engine on a fuel it is not designed to use, you are storing up trouble for the future. Remember all the problems people had when the lead was taken out of petrol. Well now they are putting additives into it and until a new generation of engines come on to the market designed to run on E85, I would steer well clear. After all why would Briggs and Stratton tell you not to use it if it is OK?  They have nothing to gain from not recommending it if it is safe to use.

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Posted by motocycliste - 4 years ago

The problems that may be caused by E85 are not so much mechanical but  is more to do with the chemical effects on peripheral equipment such as plastic or rubber components that may dissolve over time, especially fuel pipes and O rings. It can also leach out the zinc in old brass components, (Don't ask how I know that!).

Ethanol in the fuel will promote cooler running but fuel consumption will be noticebly worse than using 95.

If your machine was made before the introduction of E85 you will be storing up trouble by using it .

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Posted by Pushkin-986745 - 4 years ago

I have been running my stuff on E85 since it came out , never had a single problem with B&S engines or the like runs loveley, no over heating nor pinking . I even run my Mercedes coupe on it ..

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Posted by JohnP-390097 - 4 years ago

I have run Briggs and stratton engines for years on 95 octane fuel without any problems. The recommendation is anything above 87 octane but E85 is a mixture of fuels which B&S engines are not designed to run on and I certainly would not use it. A damaged engine is far more costly than the few cents you might save.

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Posted by Fitter - 4 years ago

Unless you are running a big B and S motor which uses a lot of fuel there isn't any justification for using this E85 rubbish.

Check out some of the USA websites and see what they think about their enforced usage of 15% ethanol in road fuel.

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Posted by dangermouse-440611 - 4 years ago

as ian says it does not make sense to even try it for what these engines use is it worth damaging an engine to save a few euros.all the best derek

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Posted by Pitstop-401534 - 4 years ago

As Fully advised by B+S and many others do not bother ,

We proffesionals would not use it ourselves because we are told not to by the engine manufacturers , and if we did use it to test if the specialists were wrong the owners of the machines we are working on would soon come down on us like a ton of bricks when the engine eventually complained

most small machines fuel tanks are full at 1 litre so why save 40c against specialist advice

So , No , never tried it

Ian T

Posted by bartyb - 4 years ago

Some very learned people say don't do it (as do B&S) with out some mods, specifically jets and most importantly float.

http://web.utk.edu/~scurran/e85kart/Retrofit of a Briggs and Stratton Small Engine to Run E85.pdf

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Posted by diggerfrance - 4 years ago

Less than 80 cents at Netto is not a few cents saving. I was hoping for a response from Dangermouse or similar.