Honda Civic Journal Logs    

► Air Impact Wrench - Honda Civic
► Bolt and Nut Torque Specifications
► Boot and Front Axle Replacement
► Changing the Engine Oil - Honda Civic
► Changing the Timing Belt - Honda Civic
► Changing the Water Pump - Honda Civic
► Engine Coolant Temp Sensor - Honda
► Fuse and Relay Box - Honda Civic
► General Maintenance Schedule
► Inspecting the Idle Air Control Valve - P0505
► Jerky steering wheel Fix - Honda Civic
► Jump start your car battery - Honda Civic
► Learn to drive stick shift - Honda Civic
► Pass Smog Check - Honda Civic
► Repairing the Alternator - Honda Civic
► Repairing the Brake Pads - Honda Civic
► Repairing the Brake Rotor Disc
► Repairing the Distributor - Honda Civic
► Repairing the Front Hub Bearing
► Repairing the Fuel Filter - Honda Civic
► Repairing the PCV Valve - Honda Civic
► Repairing the Radiator - Honda Civic
► Repairing the Speed Sensor - Honda
► Repairing the Starter - Honda Civic
► Repairing the Thermostat - Honda Civic
► Replacing Exhaust Pipe Gasket
► Replacing Front Rear Shocks - Honda
► Replacing the CYP Sensor - Honda
► Replacing the Fuel Pump - Honda Civic
► Replacing the Oxygen Sensor - Honda
► Saving Gas - Honda Civic
► Stolen Car and Kill Switches - Honda
► Trouble Codes (MIL / CEL) - Honda Civic
► Washing Machine Repair - Bad Motor


Engine Oil ChangeBrake Pad ReplacementBrake Disc Replacement
Axle ReplacementHead Light Bulb ReplacementSide Door Window Replacement
Alternator ReplacementBattery ReplacementTransmission Clutch Replacement
Front Hub Bearing ReplacementStarter ReplacementFuel Filter Replacement

Saving Gas - Honda Civic

With the huge increase in gas prices, an interest in fuel-saving tips have become very popular.

How do you calculate the MPG for your car? Follow these instructions and use the calculator below.

1. First, fill up your gas tank to full.

2. Reset your trip meter (next to your odometer) on your dashboard to 0.

3. Travel 100 miles or more (the more miles the better). Try to isolate driving between traveling on highways/freeways only and street/intersection conditions.

4. Then refill your gas tank to full and enter your values below and click on calculate.

Miles traveled (trip meter):
Gallons on next full tank of Gas:
Miles per Gallon (MPG)

I have heard that reducing your speed helps conserve fuel. But how much of this is really true? To run a simple test, I looked at the RPM meter while driving 80mph and 40mph. At 80mph, it appears I'm consuming enough fuel to spin the engine at 3500 revolutions per minute. Theoretically if I were truly saving gas, I would think my RPM should be less than 1750 RPM while travelling at 40mph.

My actual RPM results at 40 mph? about 1750.

Evidently, slowing down didn't seem to reduce my RPM relatively but instead only reduces the time it takes to get to my destination.

An argument maybe that wind resistance slows you down at higher speeds. If that were true, wouldn't my traveling speed then be reduced to 75 mph if I were to maintain 3500 rpm? I suppose that would be true if I had a box-like car. Fortunately, most Honda Civics have aerodynamic characteristics.

Maybe putting this to the real test will show different results. While driving consistently between 70 - 80 mph along a 22.7 mile freeway, it appears I've consumed 0.55 gallons of gas which equates to 41.27mpg.

Next, I'll run the same road while driving around 60 mph to see just how many gallons I consume. After driving the same road for 22.7 miles while maintaining a 60 - 70 mph speed limit, it appears I had consumed 0.61 gallons of gas which equates to 37.21mpg.

So there you have it, no gain in miles per gallon if you drive slower.

Here are a few ideas that might make more sense.

Gas-saving tips
Reduce the overall weight of your vehicleEliminate any unnecessary heavy items in your trunk and passenger seats.
Ensure tires have proper air pressureGet the best traction you can achieve on the road
Use highest gear for manual transmissions when possibleThe lower the RPM the less fuel consumed. For example, 5th gear uses less fuel than 4th gear at 60mph
Coast in Neutral gear whenever possible for manual transmissionsNeutral gear drops your RPM to idle speeds between 500 - 750 RPM to help save gas
Use regular unleaded instead of premium if your car recommends unleaded only fuelThe price gap difference between regular and premium unleaded may not be worth the extra cost for a car that accepts regular unleaded.
Periodically clean/replace your air filterclean air produces good combustion which equates to better performance.
Periodically clean the screen in your Idle Air Control valveclean air produces good combustion which equates to better performance.
Take freeways whenever possible instead of stop-and-go traffic lights and stopsCoasting across the freeway at less than 2000 RPM uses less fuel compared to revving your car to 3500 RPM after every complete stop and braking to cut-off the momentum of your vehicle.
Roll down windows instead of using the air conditioner in slow driving conditions when possibleYour air conditioner demands power and your car will provide this power by spinning your alternator faster by raising your meter to an additional 500 RPM worth of fuel.
Avoid using high powered stereos and amplifiers when driving in slow conditions when necessary.These devices can demand a lot of power and your car will provide this power by spinning your alternator faster by increasing your RPM and consuming more fuel.

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