| Premium vs. Regular and the catalytic converter?
I own a “California” 94 E-320 wagon. The owner’s manual indicates that running less than a premium grade would clog/damage the catalytic converter. Does any body know if there is any truth to this? If no, has anybody noticed a significant difference in gas mileage when using regular over Premium. There was a .30 cent difference at our local gas station today. Running regular could save me (us all) some bucks.. |