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Fuel Saving Tips

Parking tip

If you are safely able to do so, pull through back to back parking spots so that you are facing nose out. When you leave, you can pull out forward(slowly and carefully) without having to reverse, stop, and then accelerate forward again.

posted by jgibbsjr on September 21, 2008

this tip works for 90% of voting Fuelly members.

Cool car interior quicker

If you use the A/C a lot, like I do, here are a few tips. Before you start the car, roll the windows down. In the summer, the car cools down much quicker if you let the hot air in the car naturally blow out the windows. I leave the windows down for about thirty seconds while backing out. Your A/C compressor won't work as hard to cool the interior, saving you gas. I also turn off the A/C fan when parking. That way the engine doesn't have to work harder to start compared to starting with the A/C on.

posted by jgibbsjr on September 21, 2008

this tip works for 87% of voting Fuelly members.


This works well on manual transmissions. When you know you'll be slowing, i.e. you can see the light well ahead turn yellow, just take your foot off the gas, shift into neutral and gently coast on until you need to stop. There's no sense speeding to a stop light and wasting perfectly good momentum in the process. Odds are the light may even turn green again by the time you get to it. Similarly, when cresting a hill, so long as the road ahead is safely clear, let gravity do the work instead of your engine. When slowing while going up a hill, again, let gravity do the work.

posted by Jabber on September 19, 2008

this tip works for 55% of voting Fuelly members.


Wind resistance is one of the huge factors that causes worse gas mileage. While driving on the highway, driving behind another car can greatly reduce the amount of wind resistance on your vehicle, thus increasing your gas mileage.

posted by onlycodered on September 14, 2008

this tip works for 62% of voting Fuelly members.

Get a jump on the Holiday

Generally speaking, holidays (especially 3 or 4-day weekends) mean a higher than usual demand at the pump. Higher demand = higher prices. So don't wait until the holiday and fill up a day or two before.

posted by joeperez4 on September 14, 2008

this tip works for 86% of voting Fuelly members.

Keep RPM's low

I agree with Tikitantrum on August 8. Keep the RPM's low to get better mileage. I was getting about 24MPG until I started shifting especially early. Now, keeping the RPM's below 2000 is getting me over 26MPG! The few times I took off harder, letting R's go double that, my mileage was back below 26, further confirming to me that keeping the engine revs low really, really helps.

posted by HappyDad on September 12, 2008

this tip works for 75% of voting Fuelly members.


I found a great way to increase gas mileage after reading about hypermiling. Fact granted, those around me don't like it that I am at (or under) the speed limit, but they don 't pay my driving expenses. Hypermiling has improved my gas mileage by 30% -- instead of 2 days on a tank of gas, I am now averaging 3 days per tank. To learn about hypermiling, type the key word (hypermiling) into any Web browser I am assuming that those who are members of this Web site care about fuel efficiency. Many drivers do not realize that fast accelerations, fast breaking, tail gating and weaving in and out of traffic also lowers gas mileage. Heavy breakers, and those who are impatient will realize their mistakes -- at the gas pump. In my own driving experience, air conditioning reduces gas mileage by about 25%, which is staggering. Needless to say, I pray for cooler days, and only turn on the air as a last resort...but humid days in 90+ degree weather can make anyone wilt, so it is sometimes unavoidable. I wish you great gas mileage and safe driving to your destination!

posted by photostitch on September 6, 2008

this tip works for 75% of voting Fuelly members.

Increase MPG

Change to synthetic oil in all applications on your vehicle. Car will run cooler, increase MPG and fewer oil changes. You can extend your oil changes between 7,500 miles up to 25,000 miles depending upon the type of synthetic oil you use. I use Amsoil Synthetics. Also, put a fuel cleaner in your gas every so often to help keep the fuel system clean and remove any condensation build up in the tank or gas line. Keep tires inflated to proper psi and keep your car CLEAN. Believe it or not, a clean car will get better MPG.

posted by BizNetFuel on September 3, 2008

this tip works for 67% of voting Fuelly members.

Turn Less

Turning less makes your driving more smooth, therefore saves a little gas. Cut corners when you are the only one on the road. Such that in an S-turn, you would just drive in the straightest line possible within the two lanes of the same direction, or single lane if the lane is wide enough.

posted by codemunky on September 3, 2008

this tip works for 56% of voting Fuelly members.

speed does matter

Contrary to what some have said on this FAQ, speed does matter (not just RPMs). Why? Wind resistance. Wind resistance increases as a cube of your speed. According to government statistics, there is a fuel economy difference of 17%-25% between driving at 55mph and at 70mph. Sources:

posted by xeyedjack on September 1, 2008

this tip works for 100% of voting Fuelly members.

The Brake Effect

Vehicles with rear drum brakes have automatic adjusters that, overtime, can get dirty and stop working properly. The front brakes then have to work harder which can cause them to drag. Dragging brakes will cause fuel mileage to decrease.

posted by robarnt on August 30, 2008

this tip works for 53% of voting Fuelly members.

Remove Roof Racks

If you can remove your roof rack, do so if you're not going to be using it, even for a week. The extra wind resistance reduces your MPG.

posted by bruzie on August 27, 2008

this tip works for 88% of voting Fuelly members.

What to watch out for

If a tanker truck is filling the fuel stations underground tanks, go to the next fuel station. When the underground tanks are being filled, the contents are being stirred, increasing the risk of getting sediments and water into your tank instead of gas.

posted by ShoWtiMe on August 26, 2008

this tip works for 81% of voting Fuelly members.

New Tires? Look for LRR rated.

If you are replacing your tires anytime soon you should look for tires that are designated as Low Rolling Resistance (LRR). LRR can help improve your fuel economy by 2-4%. Be advised though, LRR tires may be hard to find. Look for Michelin MXV4+ or Goodyear Viva2.

posted by modysy on August 25, 2008

this tip works for 64% of voting Fuelly members.

Walk a little

I often see people driving round shopping precinct car parks looking for an empty spot as close as possible to the shop. If it's not raining and you don't have a disability, park a little further away.. Often you will find that the short walk after parking the car a little further away will be less than the time spent looking for the closest spot, you will burn less fuel, and burn a few more calories, which can't be a bad thing, and the car park is often less crowded, meaning you're less likely to ding your car.. This way you're a winner, which ever way you look at it.

posted by SwissJon on August 25, 2008

this tip works for 98% of voting Fuelly members.

Use Gas Tracking Sites to Spot Gas Deals

Sites like depend on their users to submit current gas prices to the main site for everyone to see. It's a good idea to compare prices before ever having to leave your house.

posted by Nettle on August 24, 2008

this tip works for 78% of voting Fuelly members.

Inflate More Than You Think

You can safely inflate your tires, in most cases, to a higher pressure. For example, my minivan manual says to inflate to 35psi, but the max pressure on the tire sidewall is 44 psi. I find I can run at 40psi without making the ride too harsh, and I've picked up a couple of MPG. Your mileage (and comfort level) may vary. Never exceed the cold inflation pressure embossed on your tire sidewall.

posted by b3n on August 23, 2008

this tip works for 61% of voting Fuelly members.

Fuel Map - Buy gas cheap

Plan your trip or just your regular drive home by finding the cheapest fuel. Try: (US + Canada) Gas Buddy can be added to Google maps or you can find a map of your area right on the site. The nation wide heat map is also cool. If your putting lots of effort into saving 1-2 mpg or a few $ per tank you may as well be buying the cheapest fuel. On my route in Boston prices vary from 3.69 to 3.53, that difference alone is worth $3.20 a tank. Thats practically a free gallon of fuel and nearly the same as squeezing an extra 1 mpg out of my vehicle.

posted by randomic on August 22, 2008

this tip works for 100% of voting Fuelly members.

Modern cars warm up faster

Modern lubricants flow well in cold weather, and do their job better than their previous formulas. Modern engines are also made to much tighter tolerances. Fuel injection has eliminated the choke and the need for a warm manifold. You'll get better mileage if you only warm up the car for 30 seconds or so. The car will warm up faster with gentle driving for 5-10 minutes than it would idling for the same amount of time. Gentle driving will also warm up your brakes, preventing warped rotors, etc. that can be caused by an abrupt stop with cold brakes.

posted by chuckbalog on August 17, 2008

this tip works for 94% of voting Fuelly members.

Get an OBDII compatible computer

Cars built after ~1996 have a port (OBD II) for accessing the sensor data from your car. The Scanguage II is recommended.( "Trip computer: Maximum Speed, Average Speed, Maximum Coolant Temperature, Maximum RPM, Driving Time, Driving Distance, Fuel Used, Trip Fuel Economy, Distance to Empty, Time to Empty, Fuel to Empty A digital gauge: Fuel Economy, Fuel Rate, Battery Voltage, Coolant Temperature, Intake Air Temperature, Engine Speed (RPM), Vehicle speed (MPH), Manifold Pressure (not available on some vehicles), Engine Load, Throttle Position, Ignition Timing, Open/Closed Loop And scan tool: Reads Trouble Codes, Reads conditions that set the Trouble Code, Clears Trouble Codes, Turns off the "Check Engine" light, Tells you when vehicle is "Ready" to pass OBDII testing."

posted by Taera on August 14, 2008

this tip works for 95% of voting Fuelly members.

Is your alingment right???

If your cars wheels and tires are not aligned right this can cause a decrease in your MPG. If even the front Toe is out .10 degrees for 7500miles that tire has gone sideways for 25% of that time. Think about it is it more efficent to drive straight or sideways. allthough sideways might be more fun...:)

posted by pynikal on August 12, 2008

this tip works for 93% of voting Fuelly members.

Keep Tire Pressure High

Low tire pressure means more rolling resistance, which means more fuel consumption to move the car. Not to mention driving on under-inflated tires puts the driver at risk to tire blowouts and/or accidents, especially when turning. Check the inside of the driver door for a sticker that lists the suggested tire pressure and make sure all your tires at at that pressure. Don't forget to adjust your pressure if you're carrying a load, such as for a road trip or something.

posted by justinperkins on August 12, 2008

this tip works for 82% of voting Fuelly members.

Take it easy on the gas pedal

Instead of gunning it once the light changes to green, give it an easy acceleration. It isn't a race and revving that tach up when accelerating just uses up more gas. I try to keep mine around 2500 max when accelerating. Sure, people behind me may think I'm 150 yrs old. But, its not only saving me gas but them too! :)

posted by engineerdude on August 12, 2008

this tip works for 86% of voting Fuelly members.

Cruise control is your friend!

Use the cruise control where ever possible - make sure you don't use it in traffic, it is dangerous and don't use it in hilly regions. Also drive slow and passive. Aggressive starts from traffic light stops don't help you get anywhere much faster, but saves a lot of fuel.

posted by mrgoofy on August 11, 2008

this tip works for 42% of voting Fuelly members.

Use a higher gear

If you have a standard shift like I do (that's the real way to drive!), stick it in a higher gear whenever possible. Shifting to a higher gear lowers your RPMs so your car doesn't have to work as hard to keep the same speed. Don't stay in third if you're going 35... put it in fourth already. Or accelerate a bit more and you'll be cruising in fifth. Excellent.

posted by katiej88 on August 10, 2008

this tip works for 90% of voting Fuelly members.

50/50 Rule

As the television show Mythbusters has proven—when traveling under 50 MPH it is more fuel-efficient to leave your windows down and your AC off. When traveling over 50 MPH it is more fuel-efficient to have your AC on and your Windows up.

posted by TikiTantrum on August 10, 2008

this tip works for 89% of voting Fuelly members.

Don't Peel Out

If your in an automatic vehicle, take a few seconds between letting off the brakes and hitting the gas, because when you let off the brakes your car will start moving on its own, therefore saving gas because it takes more gas to get a car moving than it does to speed it up.

posted by pier27z on August 10, 2008

this tip works for 60% of voting Fuelly members.

Why charge a red light?

Look ahead, if you see a light is red just coast. You're not getting through the intersection until the light turns green anyway so why rush? You save the gas you didn't use to speed the car up to charge the red light, AND improve the chance that the light will turn green while you're still rolling. If you're still rolling when traffic moves you've saved the gas you would have used to get to that speed too! Also, less accelerating and braking will make for a more comfortable ride for your passengers.

posted by hudson on August 9, 2008

this tip works for 97% of voting Fuelly members.

fuel saving tips

If your vehicle has cross rails on the roof that never get used try taking them off to decrease wind resistance. I've found the best economical speed for my HIghlander is just below 50mph when the transmission just shifts into 5th and the RPM drops to 1500. The real-time mpg graph indicates over 30 mpg at this point. Cruise control on rolling hills can waste gas as the vehicle will shift down a lot trying to hold the set speed. It's better to use a gentle foot on the accelerator and try not to force a downshift.

posted by toycannon on August 9, 2008

this tip works for 90% of voting Fuelly members.

Cup of Coffee on Dashboard

Pretend you have a cup of hot coffee on the dashboard. Accelerate and decelerate in a manner that would not make the cup of coffee spill. That is the way you can improve your MPGs.

posted by pvertes on August 9, 2008

this tip works for 83% of voting Fuelly members.