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If you have some old used motor oil that's been sitting for a long time for the particulates to settle out, or you can run it through a filter (like 5 micron or less) it will turn the fuel black. It won't matter what color it started as. Yes, dyed off road fuel is everywhere, $10k fine per...

Around here the stickers say things like B2, B5 or B20, or higher numbers up to B100, but that's the biodiesel blend not ethanol. Ethanol is strictly for gasoline in my area. Fortunately I can get ethanol free gasoline at a few local pumps because we're near the water and ethanol fuel sucks...

I've mostly heard of ATF being used to help free up sticking injectors, because of the amount of detergents in it, though I can see it cleaning the pump as well. Not sure about it's effect on seals.

Umm, E85 is an 85% ethanol 15% gasoline blend (anywhere from 51% ethanol to 83% actually, based on climate) , not to be used in Diesel engines for any reason. The biggest issue with the loss of sulfur in fuel is that sulfur causes seals to swell, when it was removed a lot of pumps started...

The sulfur did act as a lubricant in older fuel systems, so I won't say it's a bad idea to use some type of additive, but there are still plenty of vehicles out on the road that have done hundreds of thousands of miles on them since the introduction of ULSD. They do add some lubricity enhancers...

yeah, I know the feeling. If you're going to tear it apart, that's the best time to make upgrades. Also not a bad idea to throw out questions to this crowd. Unlike a lot of forums, we're pretty laid back and won't jump all over someone for asking a new idea, unless of course there are already...

2 stroke oil and many of the additives may give slight benefits to the fuel, and if you use a good quality one you're unlikely to do any harm, but there isn't really much need to treat fuel unless you have a good reason to. One example is in very cold climates adding anti-gel additives may be...