Just a quick question, when i bought the scooby the guy who owned it had put just normal unleaded in and he said for better performance i need to run it on vpower. He said i have to disconnect the battery for 4 hours so the ecu can learn to go back to vpower not normal unleaded. Is this true??

thanks

 

What Year Model of car and engine?

 

classic shape impreza year 2000 engine gc8 ej20 i think

 

It will adjust automatically but you might notice more of a kick if you reset it but the end result will be the same.
Reset procedure in the help pages on my website