[madcockney]

The problem with ethanol regarding agriculture is food production as in many countries they moved across to production for ethanol that reduced food availability and increased prices.

Suzuki have stated that the SV since the year 2000 is suitable for 5% ethanol in the UK, but in reality it is likely to be OK for much higher than that as the USA has had 10% for years, as have many EU countries, and several states have increased or are in the process of increasing that level. Some South American countries already run their vehicle either on pure or high levels of ethanol and have done for many years. The big problem people will readily see with vehicles suitable for ethanol is that people replace seals, O rings, gaskets, etc with non compliant ones and they melt, disintegrate, etc. Oh and not to forget those earlier bikes with plastic fuel tanks not suitable for ethanol.

Fuel stabilisers have been used by many and do appear to work. They certainly work on ICE garden machinery that are laid up for considerable longer times than most bikes. I know fellow riders that automatically put into their tanks on laying up. However I have had my bike laid up over winter whilst doing work on it, though with a full tank, and had no issues in restarting, though that may be different if laid up for longer than six months. The main thing is not to allow air in to evaporate the fuel and moisture to get into the fuel. The fact that ethanol is hygroscopic had lead some people to assume that it is worse than it is. (On Youtube "The Workshop", a motorcycle channel, did some tests on this that more or less concurred with on-line research I had undertaken over the years.) So in my opinion you can save your unused fuel in a sealed fuel container, which in theory is better than doing what I do and left in a full bike tank, or use stabilisers. Most important though is to buy from a fuel station that has a high turnover of fuel so that it is not left in the stations tanks for long before you fill up.