Ethanol has high octane, but low energy content.
Originally Posted by M Power
Some gas stations add ethanol for winter. I was told that this could cause detonation. If so, maybe Dinan software is not fully compatible with it.
"That's right, you're not from Texas, but Texas wants you anyway." -LL
2001 Z3 3.0i Roadster (Topaz Blue Metallic, 5-speed manual, Sport Package, CD radio, heated seats and mirrors, non-power top via special order)
"Beemer" is for my BMW motorcycles - '13 K1300S, '95 R1100RS, '88 K75S, '75 R90S (gone, but not forgotten).