Winter gas is about 5-10 percent less in mpg. Introduced to the U.S. market in 1985, the Honda Civic Si has enjoyed a storied history that’s as revered as that of other performance icons like the Mazda MX-5 Miata. The fastest way to get to operational temp is to simply drive the vehicle once you start it. you don't state where you are...but colder temps cause poorer mileage. On the other hand, the 9th-gen Civic Si offers a more composed and comfortable ride at the expense of slightly less athletic handling. Wait until spring time and recheck the mpg after acouple of tanks. Winter blend gasoline has less energy then summer blend which causes the mpg to drop. Mixed driving but does have a good deal of highway.

A supercharged 9th gen Si is much different than a stock 9th gen power delivery wise, so this is a hard comparison for most people. as you mentioned, winter gas. Give ecu time to learn. For most drivers, this is an acceptable compromise.The 9th-generation Si is also quieter at highway speeds, which makes it an even better daily driver than its predecessor.Compared to the 8th-generation Civic Si, the 9th-gen model is loaded with respectable tech features.

Depending on where you live fuel economy is lower in the winter because of winter gas and it takes more time for engine to heat up.so many things factor into mileage. Second is air. A forum community dedicated to 9th generation Honda Civic owners and enthusiasts. The infotainment system is easy to use, intuitive, and responsive.

Keep the tank full and don't let it drop below 1/2 for too long.

Theres 2 blends of fuel that the U.S uses. Like I said earlier, it seems to be getting better now that she is religiously using the "econ" mode. 6th Generation: 1996-2000 The 9th-gen Si also upped the audio system ante with an available 360-watt seven-speaker (the 8th-gen sufficed with six) audio system with a thumping subwoofer. I'm trying to choose between these two cars and they have similar numbers on paper, but I'd like to know what you guys have been getting in real world driving. JavaScript is disabled.

Cold air in the winter is denser. I have a 12 LX and with 118 fillups average 40.7 mpg. ... A forum community dedicated to 9th generation Honda Civic owners and enthusiasts. Come join the discussion about performance, tuning, engine swaps, turbos, modifications, troubleshooting, maintenance, and more! Lights,heat and long warmups is good for another 10-15 percent. It is 1 owner, and from the pictures it looks clean.

Find the best Honda Civic Si for sale near you. Advertised mpg doesnt mean you actually will get those or close to those numbers bc there is alot of variables that can affect these numbers. With 8th gen civic the advertised city/hwy is 26/34. Give ecu time to learn. While some may prefer the frenetic, racier-nature of the previous generation, the 9th-gen Civic Si still offers the core elements of what makes these cars so superb but in a more livable package.© Copyright 2020 Endgame360 Inc. All Rights Reserved. acceleration habits. I calculate mpg the correct way by dividing gallons used into miles driven. Theres several other factors but these are the most common i can think of at the moment that makes the biggest impact on mpg for winter.
9th Gen Civic General Section. Paul Habib, Jr. did that on his 2006 Honda Civic in just the first two years he owned it.

Our engines run most efficient when at operational temp. Lights,heat and long warmups is good for another 10-15 percent. The longer you just let it idle the more fuel you waist. We are in Southern California and she has been getting better mileage now that she is using the econ button and the car is slowly breaking in.I usually fill my car about 75% full(lighter the more mpg) on the cheapest gas(burns faster=lower mpg).
For the first few thousands kms the fuel economy will be lower as the engine wears in. A much-improved navigation system is user-friendly and quick to respond. no two cars will be the same.

The longer you just let it idle the more fuel you waist. Surpassing 250,000 miles on a single car during its lifetime is a remarkable feat. Each generation Civic Si represented a leap forward in terms of performance, safety, and technology, but still remained faithful to the core values promised by the Si trim.In the Honda Civic Si community, most of the praise and adoration is lauded on the 6th and, more specifically, 8th-generation models because they embody the lithe, rev-happy, and no-frills approach to performance that’s made Si models a hit among enthusiasts.

My wife has a 14 LX and cant get better than 25 mpg winter and 30 hwy summer. Use better fuel. The 8th-gen Civic Si (available from 2006 to 2011) was the last model to feature a small-displacement four-cylinder engine with a stratospheric redline, so many Honda fanatics were disappointed when the 9th-gen Si debuted in 2012 with a lower-revving, larger displacement power plant.