Donaldson Blue® Air Filters Proven Nanofibers Make a BIG Difference Donaldson Blue® air filters with Ultra-Web® nanofiber technology protect engines by providing better initial and overall efficiency compared to conventional cellulose media. We invented air filters for heavy-duty diesel engines over 100 years ago and were the first to develop nanofiber air filter media for the diesel engines, with more than 20 years of proven performance. Off-road trucks and equipment Longer Engine Life - Donaldson Blue™ air filters provided better engine protection by allowing much less contaminant to pass through than cellulose air filters Longer Filter Life - Smaller interfiber spaces of Ultra-Web® nanofiber technology hold more submicron contaminant than conventional filters with cellulose media, delivering longer filter life Ultra-Web® Nanofiber Technology -- Exclusively in Donaldson Blue air filters Engineered to perform in extreme temperature and humidity conditions, unlike ordinary nanofibers

Proven in the real world – used in diesel engines for nearly two decades On-highway trucks are guaranteed to go twice the distance compared to standard cellulose filters Donaldson Blue™ Air Filters Looking for longer air filter service interval for your fleet? Donaldson Blue™ air filters increase engine protection with high efficiency filtration, extend service intervals, and reduce your fleet's maintenance costs.The key to any hustle is a believable story. It’s no different with fuel-saving flimflams, which often claim to exploit some small, overlooked factor that automakers or oil companies don’t want you to know about. Normally, we wouldn’t give a second thought to fuel-economy hucksterism, but our dedication to journalistic inquiry—and our desire to save you a few bucks in these times of rising gas prices—found us ordering five items that promise to stretch your petro-dollar. Four of the five devices showed up, and we tested each in a Mazda 3 and a Jeep Grand Cherokee at steady speeds—35 and 70 mph—on the oval test track at Chrysler’s Chelsea proving ground.

), which plugs into a vehicle’s OBD II port, provided accurate average-fuel-economy measurements. Well, we hope they don’t surprise you. The Claim: “Simply placed in the fuel tank or air filter, the Dynamic Ionizer pellets act as a molecular Ionizer on the fuel in the tank and air on the filter. This dynamic ionizing effect energies [sic] the fuel and air at molecular level [sic] causing [sic] to be agitated as it enters the combustion chambers.”The Result: We never had a chance to try out these magic beans. Six weeks after we received a shipping notification from pre-tsunami Japan, this product had yet to arrive. The Claim: Plugged into the cigarette-lighter socket, “the FD-47 increases a vehicle’s miles per gallon (MPG) through power conditioning of the vehicle’s electrical systems. Conditioned and clean power allows the vehicle’s electronic control unit (ECU), fuel injection and engine timing equipment to operate more efficiently.” The Result: The modest improvement we saw is nowhere near the claim of  “up to 25 percent” more mpg and likely attributable to minor variables such as wind.

Post-test, we cracked open the FD-47 to find a simple circuit board for the LED lights. Even if you could “condition” the ECU through the lighter socket, it’s unlikely  the Fuel Doctor is doing so. air purifier makes me sickOn the upside, it might help prevent you from smoking in your car.air purifier with heat 35 mph: +2%70 mph: +1%air purifiers amazon.com Update: The people at Fuel Doctor take issue with our test of their product. Fuel Doctor claims that its product is meant for vehicles that are 2 or more years old. We acknowledge that our test was performed on newer vehicles and stand behind our result. If you wish to perform your own examination we refer you to Fuel Doctor’s 90-day money back guarantee. We recommend you don't bother, though.

Our follow-up test, performed with help from an independent expert, supports our initial conclusion. You can read the full report on that test here. The Claim: “The vehicle’s voltage will drop when electrical components are in use and when the car is under acceleration; Hyper Voltage System stores electricity to provide constant voltage to your electrical system.” The Result: Remember the thing about a credible story? Here’s a perfect example. Accessories sap power from the electrical system. The alternator responds by pumping out more power and increasing the engine’s load and fuel consumption. The capacitors in the Hot InaZma Eco (we took a destructive peek inside) are not likely what was responsible for the negligible fuel-economy improvement we measured. The Claim: “Moletech is a fuel enrichment system that modifies the properties of fuel. It changes the molecular aggregation of the fuel from larger clusters to smaller clusters or even single molecules by breaking down the van der Waals force between the fuel molecules.

The smaller fuel molecules expose a larger surface area for improved contact with oxygen which produces a better combustion reaction, in turn allowing greater fuel efficiency.” The Result: The Moletech consists of three small cylinders: one for the fuel tank, one for the air cleaner, and one for a coolant line. After installation, these passive devices require an “activation,” whereby you rev the engine for a few minutes. Even if the chemistry mumbo jumbo were real, what’s to stop the fuel from clumping up again on the way to the engine? You’re better off wearing a special fuel-optimization party hat than buying the Moletech. 35 mph: +2%70 mph: -1% FUEL BOSS MAGNETIC FUEL SAVER The Claim: “When gasoline remains in your tank over time, the fuel molecules start to cluster. The molecules on the inside of these clusters can’t be exposed to the oxygen necessary for combustion. The result is incomplete fuel burn with the unburned molecules emitted as pollution or remaining inside the engine as damaging carbon/varnish deposits.