- Joined
- Dec 30, 2006
- Messages
- 29,558
My Z is specd for "Premium Unleaded Fuel Only". Last week I accidentally put regular unleaded in it (yeah,I had my head in the clouds!). What`s weird,my car seemed to run smoother and had harder pull and smoother upper rpm acceleration. Seemed to get better gas mileage too. Is premium gas a sales scam?
NOTE-I get occasional "pinging" when I shift really hard and put my foot in it,BUT,that happens whether I use premium or regular unleaded. Is this pinging being caused by the ethanol being put into gas nowadays?
I also read that using regular unleaded in a car that`s specd for premium won`t hurt a thing (Cartalk.com).
What`s everyone`s take on this?
NOTE-I get occasional "pinging" when I shift really hard and put my foot in it,BUT,that happens whether I use premium or regular unleaded. Is this pinging being caused by the ethanol being put into gas nowadays?
I also read that using regular unleaded in a car that`s specd for premium won`t hurt a thing (Cartalk.com).
What`s everyone`s take on this?