MPG

[SmrtyPants]

Let me ask you something, do you use premium gas in your car? I did not realize that you were suppose to.... does that mean if I am using regular, I will screw up the engine. Do you know anything about this.

Denise
Smarty Pnts, PA

[LinuxGuy]

Originally Posted by SmrtyPants

Let me ask you something, do you use premium gas in your car?

Yes, engine requires 91 octane minimum.

[Dave777]

Originally Posted by LinuxGuy

Yes, engine requires 91 octane minimum.

But runs just fine on regular.

[Dunerunner]

Although the ECU may compensate for regular 89 octane fuel, this doesn't mean there will not be damage to your engine. The 1000cc Mitz is a high compression engine and issues with predetonation can cause your plugs to deteriorate at a faster rate, and cause piston and valve damage. Proceed at your own risk!

[Paul A]

Picked up my smart on Moday, filled up today (Fri.) 242 miles 6.2 gal.
39.03 MPG about 50% city 50% highway. Very happy so far.