3rd Mar 2008, 15:48
Every car I buy I immediately switch to full synthetic oil, a K&N air filter, and in some cases a more free-flowing exhaust. These small fixes cannot only boost your mileage, but might also give you a very small, but noticeable increase in power, which the Yaris could use. On a smaller car such as the Yaris small power boosts can be very noticeable, and the extra mileage will pay for the minor changes in a year or two of driving.
3rd May 2010, 00:01
I own the very same car, with automatic transmission, and routinely get 33mpg in the city and 40+ on the highway. Definitely check your tire pressures -- also pay attention to your driving habits -- average speeds and the way you accelerate from stoplights. If it's not your driving style, it may be something your dealer needs to look at.
6th Dec 2012, 13:35
Thanks Mr Honda Car Salesman. This is an awesome little car if you want to leave a tiny footprint. I consistently get 45-48 MPG on an imperial gallon, driving highway and city combined. A little less in the winter. I spend $50 a week compared to my old Sunbird, which costs me twice that. I figure after 5 years of driving this, it will have saved me $6k. It has 150k now and still has its old brakes. Oil changes, 2 air filters, a timing belt, and 8 tires is all it cost me... Nuff said!

30th Dec 2007, 20:12
I also average at best 30 US MPG in city driving (25 only for the first thousands miles), and above 40 MPG on highway; not such a difference with bigger cars.