buckiprof;1164246; said:
I have a 2006 Honda Civic and I get much better mileage than what was advertised for it. Mine is a 5-speed manual, and I easily get 33-34 mpg city (which is 90% of my miles). On the highway, with cruise set at around 72, I push 38-39 mpg. Both figures are higher than what was advertised for the vehicle.
BTW, my prior car was a 1992 Civic that also got better mileage than what was advertised.
The CRX Honda 5 speed (1.8L 4 cylinder) from that era would do much better than advertised also. My friend had one that he drove on business trips. He changed the oil in the transmission and engine to a good synthetic grade and went 1000 miles on a trip. His mileage (going thru PA) was close to 70 mpg roundtrip. Since we were engineering contractors for Honda, they wanted to buy it from him to dissect to figure out why his mileage was so good. My theory is based on oil use.
Synthetics do a better job lubricating the rotating parts. They are better on bearings surfaces during cold startups and aren't prone to getting fuel diluted like petroleum based oils can. Once the oil is fuel diluted, it breaks down and becomes a poorer lubricant (i.e engine wear and lost volumetric efficiency) . You can also go 15,000 miles without a change. I change mine at 7500 and use Amsoil and run my engines well above 100,000 mi (that's a 327 Chevy V8). Synthetics are "green" and since petroleum products are the subject of many discussions here, it's
SMART to use them.
Other tricks for fuel savings are:
1. Keep the tires at the proper pressure summer to winter. Filling them with nitrogen will keep them at recommended pressure (N2 doesn't expand or contract with temperature changes).
2. Alignment - keep the wheels pointing straight.
3. Spark plugs - switch to the platinum type tipped plugs, Splitfires etc. They ignite the mixture better and improve starts
4. Driving style - drive like you have an egg under gas pedal. This is a lesson I need to teach my 17 year old.
5. Wash and wax the exterior. Drag plays a large part in how well the body slips through the air. A C6 Corvette gets 30 MPG at cruising speeds with a hi perf V8.
My book will be selling at Barnes and Noble this summer (as soon as I write it)