E8 Fuel

[Sea Rider]

This is a non US post, so no tech or performance information available.

Seems we are going to have in a short time E8 ethanol based unleaded 90/95/97 octane gasolines (hope not all). Was wondering what is the cons about it's use, have read that atracts and holds moisture than can lead to corrosion of metal parts in the entire fuel system, plastic, diapgragm deterioration, starting issues when cold, lose of performance, more fuel related parts maintenence and change, etc as compared to standard gasolines.

Would like to know your experiences, some US, Brazilian boating friends complain about their use and the tech troubles this gives, if not mistaken they run E10 gasolines. A tech mecanic stated that ethanol gives much more troubles on carbed 2/4 stroke motors than in inyected 2/4 strokes motors Etec TLDI type, is that true ?

So before raising locally my voice of protest and going would like straight info as it's use has already aroused controvercies between producer and boaters who will be at the end, ecologically punished.

Happy Boating

 

[TOHATSU GURU]

Re: E8 Fuel

You can do a search under the general outboard heading. It's been beat to death as a talking point, but essentially alcohol in the fuel is blamed for everything that happens now, rather than the true cause which is lack of maintenance and common sense.

 

[pvanv]

Re: E8 Fuel

Totally agreed. Ethanol in OB gas does not help a thing, and does require prudent maintenance.

FWIW, Sealed (injected) systems don't suffer as much from fuel evaporation/varnishing issues, but everything in the fuel system, carbed or injected, needs to be designed with alcohol in mind.

Ethanol can dissolve fiberglass tanks, and is hard on earlier rubber compounds, however, modern motors and their systems can tolerate E10 just fine. Same rules applies as always: Fresh fuel is a must, run carbs dry at the end of the day, close vents on small tanks when possible to reduce their "lung capacity" of moisture-laden air, use water-separator fuel filters.

 

[Sea Rider]

Re: E8 Fuel

Thanks you both for the replies. Don't know if my abroad friends are following your tech advises to the letter as to complain about, so to have it clear E8 would be a better performer, have less impact on rubber, plastic parts than E10 gasolines, or 't's the same lady with different bra ? Eventually will require more attention than when using standard gasolines.

Happy Boating