If you've got a Wii U, Wii mode is just a channel. There's one channel for Wii U games and one for Wii games. You go to that Wii channel, and the Wii shop channel is in there.f you've got a Wii U, Wii mode is just a channel. There's one channel for Wii U games and one for Wii games. You go to that Wii channel, and the Wii shop channel is in there.
CRC makes Guaranteed To Pass for both gas and diesel engines. It is made to be used before emissions testing to pass but can also be used as an additive just to clean up the fuel system. I have found I gain about 10-20 miles extra per tank (with a 20 gallon tank) after using it for the next 2 or 3 tanks.
Finally, here's a nice irony: to increase gas' octane rating, companies add ethanol, when they're mixing up a batch of premium fuel. Interestingly, ethanol actually contains less energy than untreated gas, so the net result from the ethanol component is a reduction in your MPG. Other premium additives, however, have the reverse effect, and slightly increase your MPG.