Do people really think there is a 10% hose and fuel pump and a different one for 15%. And a different one for 30% so on and so forth.
There. We agree on something. The same thing goes for OPE and recreational stuff. Instead of complying with the fuel that is available on the market, or even future-proofing something, it's easier to put garbage fuel system components on and then blame the fuel.
I may have reasons to not want to use E15, E85, or even E10. Fine. That doesn't mean that OEMs can't provide something a little more robust.
veryHeavy: Where is your source that CNG specific oils are required? I'm asking, too. Some oil companies do offer CNG and LPG specific motor oils, but I've never seen it adequately demonstrated that they are necessary. The taxis used ordinary conventional motor oil, despite sales pitches to the contrary.