I've been using premium gas in my Scion because I've noticed it gets way better gas mileage, and frankly, I don't like going to the gas station in the winter cold. So more mileage = less trips to the gas station.

Does anyone know, is this good or bad for the engine?

 

waste of moolah unless your boosted

 

^^^

If you want better gas mileage, lay off the throttle.

 

how long have you been using it for,cause like another mentioned if your not FI then really no point in using it,unleaded is recommened

 

https://www.scionlife.com/forums/sho...d.php?t=158170

Read this! End thread!