MPX chugs from coast to coast pulling a car-factory-on-a-trailer, and we learn how much power we need for a 5,000-plus pound payload.
The first step in our high-mileage pickup project: an "aerocap" streamlined cover for the bed. An aerocap gives the biggest bang for the buck.
MAX isn't just streamlined - MAX has its rolling resistance down to a minimum too, thanks to low-drag tires and lubricants. Here's a video to show how much it matters.
MAX is getting a garage mate. We're building a high-mileage pickup truck for those jobs that a sports car can't do, and this post outlines what we're starting with.
MAX doesn't have a front license plate, and here's why Jack would like to keep it that way.
If MAX is a bit too Spartan for your tastes, here's a homebuilt high mileage sports car that's a bit more plush - a Mazda Miata with a Geo Metro engine - and it's coming to the Mother Earth News Fairs.
Whether you’re looking for a sporty two-seater, a large family vehicle, or a heavy-duty farm or work truck, here's how to find the best options for vehicles that use less fuel and save you money.
The second attempt at weatherproofing MAX involves a convertible top which flips open to get in or out of the cockpit. Not perfect, but not bad.
Using an MPG app may help reduce your consumption of gas, and make your commute and road trips more economical and green.
MAX finally got a deer deflector, after three years of writing about how much it needs one. It'll give a bit of extra rollover protection, too.
Today’s full-size pickup trucks are more efficient than trucks of just a few years ago, but it’s still common for truck gas mileage to be in the mid-teens. The best overall full-size pickup fuel economy can be found on the Chevrolet Silverado Hybrid and GMC Sierra Hybrid.
The "High Mileage Car Show" at the latest Mother Earth News Fair, and the pleasure of driving a fuel efficient car.
Renowned motorcycle inventor and longtime aerodynamics expert Craig Vetter stopped by the MOTHER EARTH NEWS office on his way home from his latest fuel economy challenge.
MAX has very low rolling resistance, as demonstrated by this three year old kid pushing it around the building.
Learning from experience, I've put some impact-resistant structure on the back of MAX.
By making a pattern and a mold, we can now reproduce rear fenders as needed.
Our expert explains what really happens when fuel additives are put in a gas tank, and how this may cause more harm than good. If you really want to increase your mpg, our expert has a few tips for that as well.
Use a digital tire gauge and learn how to check tire pressure regularly to get better gas mileage. While other types of gauges exist, the digital tire pressure gauge is an accurate and simple way to keep your tires properly inflated. Read this digital tire gauge review to see what digital tire pressure checkers you can buy.
Volkswagon's high mileage (1 liter of fuel per 100 kilometers) car is getting closer to production. Expect to see 100 of these available to the public in 2013.
MAX gets a low cost, high accuracy, and none too attractive fuel gauge. Two out of three ain't bad.
We're looking at a handful of low cost improvements, and since MAX is undergoing repairs at the moment, this is a good time to make them.
MAX is getting prepped for paint, and all the essential bodywork is done for the new, streamlined roadster body.
Craig Henderson and his Avion high mileage sports car went from Canada to Mexico at 119.1 MPG. He plans to produce Avion kits.
How will we live with no gas at the pump and no power in the grid?
MAX is back at the shop, awaiting diagnosis and correction of an overheating problem, plus some additional body work before its next venture.
Renowned inventor Craig Vetter discusses his history with aerodynamics and motorcycles, and his vision for doing more with less energy.
The clock is ticking and I've been taking some shortcuts on getting MAX ready for Rally Green ... and some have turned into long cuts. I need to work smarter, not faster.
In the interest of making MAX a smidgeon safer, I've added side bumpers to the passenger compartment. Here's why I made them this way.
Results of the long-awaited cooling system test, which shows how little air MAX needs through the radiator.
The all-new 2011 Honda CR-Z sport hybrid coupe will debut Aug. 24, 2010. Developed as a stylish, driver-focused vehicle with an emphasis on efficient performance, the all-new 2011 Honda CR-Z introduces a sleek two-passenger coupe design with quick, sporty handling to the gasoline-electric hybrid segment.
A primer on fiberglass mold making and molding fiberglass parts, using MAX's nose parts (hood and bubble) as examples.
There's a new automotive fuel efficiency contest coming up -- the Rally Green -- and now MAX has a tachometer, a digital wonder called a Tiny Tach.
More progress on MAX's streamlined body, using a laser to make curved body parts fit on a flat frame.
MAX's bodywork continues, as Jack modifies the race car nose to fit over the Kubota engine.
We're modifying the Lola race car's nose to fit MAX's chassis. The first step is cutting the nose down the middle so we can move the fenders apart a few more inches, which will let us steer enough for parking and other normal street activities.
Are gas guzzlers becoming popular again? Dan Chiras gives his outlook.
How often, if ever, do you check your the gas mileage of your car or truck? Did you know it's super simple to calculate mpg, and observing it over time can help you improve your gas mileage and save money?
What kind of car would you get with the Car Allowance Rebate System, which gives consumers up to $4,500 to trade in old, inefficient vehicles?
Considering deer, it’s time for a roll bar.
In the pursuit of 100 mpg, cardboard is a nice medium for conceptualizing design features, but it has its limitations.
Two seasoned gearheads weigh in on the benefits (or lack thereof) of converting a V8 engine to run only on four cylinders.
General Motors vice chairman Bob Lutz recently discussed the price of the highly anticipated Chevrolet Volt. What do you think?
Thoughts on the potentially fuzzy math of mpg calculations.
You can save gas and money by keeping your tires correctly inflated. And now a group of high school students has launched a project to encourage drivers to regularly check their tires.
MAX needs 25 percent more horsepower to get from zero to 60 mph in less than 18 seconds. Got any suggestions?
Sequestered indoors, Jack goes to work on streamlining MAX's body.
It's time to calculate MAX's aerodynamic drag. Enter champagne science on a beer budget!
Brink TV show seeks "low-budget mad scientist." Jack and his MAX project fit the bill!
It's the age-old tug of war between good looks and streamlined, aerodynamic design. 
An automotive whiz explains why it's not a great idea to let your car warm up by idling.
MAX version 2.0 is underway.
MAX is back from the dead after its infamous wreck. So why is the frame gray?
Honda cars are famously reliable, and now there's an online community for owners of 100,000+ mileage cars to share their stories.
Breaking News: MAX Totaled
MAX gets a small favor from high-end luxury sports cars.
My low-fuel light came on. Gulp. Will it be a $50 filling?
Is the glass half empty? Half full? Or is there just too much glass? I'm designing MAX to be just the right amount of "glass" for the vast majority of our driving. Here's to efficiency.
We're at work on a 100-mpg DIY car! Come meet MAX and take a seat for what will be a long, but fun, journey.
72 mpg for under $6,000! How cool is that? Really, we want to know.
Forget what your grandpa told you — there's no need to warm up your car every cold winter morning.
Here's another gas mileage myth busted: it's better to turn off your engine than to leave it idling.
Sometimes the most direct route to your destination may not be the most fuel-efficient.
5W-30? 10W-30? Be sure you get the right motor oil grade.
You can boost your mpg by losing the cargo in your trunk. Then help reduce global warming emissions by sweating off a few pounds.
Green means go, but don't go too quickly.
Here's how to change your car's air filter — do it yourself to save big bucks and boost your gas mileage by 10 percent.
How long has it been since you checked your tire pressure?
Slow down and enjoy the scenery — you'll also enjoy a significant boost in your mpg.
Don't rip yourself off at the gas pump — stop topping off!
Want more gas for your money?
Calculating your fuel economy is easy and can help you save big bucks at the pump.

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