Here in FInland, we've got a strange situation. Ethanol fuels are almost half the price compared to normal. Example:
RE85: 1.04€/L
95E: 1.69€/L
The large "USE ONLY WITH FLEXFUEL VEHICLES" stickers on the pumps are probably scaring away most people from experimenting with it. However, those with programmable ECU's really like this ethanol fuel, since you can run higher timings, and not worry about detonation. When running only on ethanol, you should expect a 25% increase in fuel usage. Still, it's so cheap that it makes up for it.
I've been experimenting with my daily -99 K11, which is totally stock! I started by mixing a 30%/70% cocktail (RE85/95E), and it went so good that I increased the mixture to 50%/50%!
Some numbers:
Full tank regular fuel: 76€
Full tank 50/50 mix: 55€
On my other Nissan, a 100NX GTi , with an SR20VE engine swap, I'm planning to run 100% ethanol fuel. There I have a nismotronic ECU, so I can easily adjust the AFR, and make it a converted flexifuel vehicle.
Shame there's no such thing for the K11 :/
How's the situation in the UK?
RE85: 1.04€/L
95E: 1.69€/L
The large "USE ONLY WITH FLEXFUEL VEHICLES" stickers on the pumps are probably scaring away most people from experimenting with it. However, those with programmable ECU's really like this ethanol fuel, since you can run higher timings, and not worry about detonation. When running only on ethanol, you should expect a 25% increase in fuel usage. Still, it's so cheap that it makes up for it.
I've been experimenting with my daily -99 K11, which is totally stock! I started by mixing a 30%/70% cocktail (RE85/95E), and it went so good that I increased the mixture to 50%/50%!
Some numbers:
Full tank regular fuel: 76€
Full tank 50/50 mix: 55€
On my other Nissan, a 100NX GTi , with an SR20VE engine swap, I'm planning to run 100% ethanol fuel. There I have a nismotronic ECU, so I can easily adjust the AFR, and make it a converted flexifuel vehicle.

Shame there's no such thing for the K11 :/
How's the situation in the UK?