Honda Civic Fuel, Oil, Cleaners & Other MaintenanceExtending the life of your Honda Civic requires the proper fuel, oil, and cleaners, along with other regularly scheduled maintenance. Keep your Honda Civic fuel and oil at the right levels to keep your Civic on the road longer.
I get an average of 40mpg in city and have even gotten over 45 on several occasions. I shift around 2 grand but even when im gettin on it alot its actually hard for me to get below 35 in city. Ive got I/H/E, pulleys and royal purple tranny fluid. Doesnt do much for power but it defiently helps effieciency, lol