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Which Fuel Saving Devices Brand Wins?
2026 test10 productsMyths & Experiments

Which Fuel Saving Devices Brand Wins?

In our test we compared 10 fuel saving devices options head to head. Reduced speed plus increased tire pressure came out on top. See the measured results, the runner-up, the budget pick, and a link to the full test video.

The verdict
Winner

Reduced speed plus increased tire pressure

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Runner-up

Cold air intake plus MBRP high flow exhaust plus SUPERCHIPS FLASHPAQ tuner combined

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The quick take

The short version of why each pick lands where it does, built straight from the measured results.

WinnerReduced speed plus increased tire pressure

“The only three things that seem to work are the cold air intake, the high flow exhaust system, as well as the programmer. Better than that. Just slow down a little bit. That really saves the most fuel.”

Runner-upCold air intake plus MBRP high flow exhaust plus SUPERCHIPS FLASHPAQ tuner combined

The measured results

Every number below is read straight from the test. Products are listed in the order they finished.

0 To 60

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    7.52 seconds

    the slowest time yet because the traction control held the vehicle back

  • 3Obdiicats
    8.32 seconds
  • 4nitroOBD2
    8.5 seconds

    slower than the 8.32 second baseline, meaning it lost horsepower and torque rather than gaining it

  • 52G Fuel Saver
    8.76 seconds

    the worst 0 to 60 time in that test series

  • 8ecoOBD2
    7.39 seconds
  • 9NeoSocket Fuel Shark Neo
    just under7 seconds
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    7.41 seconds
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested

Mpg

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    26.23 mpg

    actual refuel calculation, computer showed 28.5 mpg; 12.5 percent better than any of the previous attempts

  • 3Obdiicats
    16.7 mpg

    over the 77 mile test loop

  • 4nitroOBD2
    16.45 mpg

    a little worse than the Obdiicats' 16.7 mpg

  • 52G Fuel Saver
    16.39 mpg

    worse than the previous two gadgets

  • 8ecoOBD2
    22.38 mpg

    over 77 miles on a 2020 Chevrolet Suburban 5.3L, described as pretty impressive for such a large SUV

  • 9NeoSocket Fuel Shark Neo
    23.36 mpg

    over 77 miles, less than 1 mile per gallon different from the ecoOBD2

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Claim

  • 4nitroOBD2
    35 percent

    more power and 25 percent more torque

  • 52G Fuel Saver

    five years of testing have shown improvement of fuel economy by 8 percent in SUVs

  • 6Ferox fuel treatment tablets

    high performance treatment that improves engine performance and combustion efficiency, extends oil life, and removes engine deposits

  • 7Turbonator dual propeller intake device

    dual propeller mechanism boosts horsepower and significantly improves fuel mileage

  • 8ecoOBD2

    save 15 percent on fuel; plug and drive OBD2 economy chip tuning box; requires about 150 miles or 200 km to learn driving habits

  • 9NeoSocket Fuel Shark Neo
    up to30 percent

    fuel savings, cleaner emissions, more horsepower, longer battery life

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested
All measurements (11 more)+

Generator Runtime

  • 6Ferox fuel treatment tablets
    22 minutes 16 seconds

    on a fuel injected generator, versus 22 minutes 48 seconds on straight gasoline, close to 30 seconds less run time

  • 7Turbonator dual propeller intake device
    about22 minutes

    plus a 23 second penalty added for setup time, performed about the same as the Ferox

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Method

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique

    tire pressure raised to 50 PSI (near max for the tires) and speed reduced from 70 mph to 63 mph

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Airflow Bench

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together

    new MBRP exhaust measured 101 CFM on a 750 CFM blower versus 74 CFM for the stock exhaust it replaced

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Mpg With Intake And Exhaust Only

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    17.74 mpg

    about 3/4 of 1 mile per gallon better than the factory setup

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Mpg With Tuner Added

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    18.78 mpg

    almost 2 miles per gallon over the factory setup

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Mpg With Tire And Speed Change

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    20.39 mpg

    at 60 mph with high tire pressure

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

0 To 60 Improvement

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together

    fastest time of the whole first-vehicle test series at 8.01 seconds, versus an 8.32 second factory baseline

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Overall Improvement

  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    22.39 percent

    fuel efficiency improvement averaged across the first four round trips at 70 mph before the intake, exhaust, and tune; 12.73 percent improvement specifically at 70 mph with intake, exhaust, and tune installed

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Carbon Inspection

  • 6Ferox fuel treatment tablets

    spark plug and combustion chamber looked pretty much the same before and after other than the spark plug turning orange

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested
  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    not tested

Mpg Computer

  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    24.66 mpg

    on the instrument cluster

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested

Mpg Actual

  • 10No device baseline 2020 Chevrolet Suburban, second vehicle
    21.9 mpg

    from the actual refuel calculation, worse than the Fuel Shark's 23.36 mpg

  • 1Reduced speed plus increased tire pressure no product purchased, driving technique
    not tested
  • 2Cold Air Intake plus MBRP High-Flow Exhaust plus SUPERCHIPS FLASHPAQ Tuner combined install, tested together
    not tested
  • 3Obdiicats
    not tested
  • 4nitroOBD2
    not tested
  • 52G Fuel Saver
    not tested
  • 6Ferox fuel treatment tablets
    not tested
  • 7Turbonator dual propeller intake device
    not tested
  • 8ecoOBD2
    not tested
  • 9NeoSocket Fuel Shark Neo
    not tested

How it was tested

  • 77 mile round trip fuel economy at 70 mph with consistent refueling procedure
  • 0 to 60 mph acceleration test
  • exhaust airflow bench test at 750 CFM
  • fuel injected generator runtime test until out of fuel
  • spark plug and combustion chamber carbon inspection with borescope
  • tire pressure increase to 50 PSI plus reduced highway speed

“The only three things that seem to work are the cold air intake, the high flow exhaust system, as well as the programmer. Better than that. Just slow down a little bit. That really saves the most fuel.”

From the test video verdict.

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