Ethanol/phase separation/water adsorption/rust in gas tank.
Is it (see post title) preventable? Ethanol-free gas is not available in my area (that I have been able to find) and everything is E10. I use a few ounces of Chevron Techron nearly every tank fill-up just to (hopefully) help keep injectors clean; I’ve heard Seafoam is better but don’t know (it’s a bit like talking about oil, politics or religion). Of course, these are fuel system cleaners but I don’t know that they are effective for helping to keep ethanol from absorbing water (prolly nyet). What I would also like to do is keep rust out of my fuel system.
Sta-Bil Storage is a great product for keeping fuel good. This is something I do know because I’ve used it for years and never have trouble restarting lawn equipment after it has been sitting in storage over the winter months. When I don’t use it I have lots of trouble getting equipment to run.
There’s also Sta-Bil 360, which I did not know about until very recently (as in today). Their ‘more info’ section states, among other things:
STA-BIL 360˚® Protection is America’s most preferred Ethanol Treatment. Engineered to fight the harmful effects caused by today’s fuels, our revolutionary formula has been engineered to be the only fuel additive you need. Use it with every fill up to help keep your engine running cleaner, leaner, smoother and stronger.
PREVENT ETHANOL DAMAGE: Protect your fuel system against damaging rust and corrosion caused by moisture and ethanol fuels.
Other ‘more info’ suggests that it pretty much also does what the Techron or Seafoam cleaners claim to do, so shouldn’t need them if using the Sta-Bil 360. K100 Fuel Treatment claims to prevent (or really delay) phase separation.
Thoughts on using these kinds of products in FI GSXR engines? Helpful? Harmful? Snake oil?
I know some things about some things but I don't know jack about a whole lot more.