- $6.96JIUDANI Fuel Efficiency Maximized: Pack of 2-1/4" 90 Degree Fuel Shut Off Valve Replacement for Tecumseh Engines 698181, 494539, 697944, and 35857Amazon
- $46.95Combustion Analysis & Fuel EfficiencyAmazon
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- $5.24Saving Gas: Tips To Maximize Your Fuel EfficiencyAmazon
- $29.00Poster: Boeing 757 Jet Aircraft Fuel Efficiency Research, 24x16in.AllPosters
- $6.48Valvoline 1 Quart 10W-30 Synthetic Motor Oil for Engine Wear Protection & Fuel Efficiency | 797578Lowe's
- $6.98Valvoline 1 Quart 5W-20 Synthetic Motor Oil for Engine Wear Protection & Fuel Efficiency | 883648Lowe's
- SALETrack Your Vehicle's Fuel Efficiency, Usage, and Much More.Boucie・Sale
- $6.98Valvoline 1 Quart 5W-30 Synthetic Motor Oil for Engine Wear Protection & Fuel Efficiency | 797975Lowe's
- SAVE $0.51$9.78$10.29Autolite Autolite Glow Plug: Improved Fuel Efficiency Fits select: 1987-1994 FORD F350, 1987-1994 FORD F250Walmart
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- SAVE $3.00$16.99$19.99Autolite Autolite Glow Plug: Improved Fuel Efficiency Fits select: 2001-2005 CHEVROLET SILVERADO, 2001-2005 GMC SIERRAWalmart
- $11.45Autolite Autolite Glow Plug: Improved Fuel Efficiency Fits select: 1977-1984 VOLKSWAGEN RABBIT, 1996 VOLKSWAGEN PASSATWalmart
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- $24.68Accelerator Pedal Assembly, 6 Speed Accelerator Pedal With Travel Sensor, 84344895, Improved Fuel Efficiency, for Malibu 2016-2019Amazon
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- SAVE $1.70$10.19$11.89Autolite Platinum High Thread Spark Plug: Up to 60kMile Life Expectancy, Improved Fuel Efficiency Fits select: 2005-2007 FORD F250, 2005-2007 FORD F350Walmart
- SAVE $30.00$199.99$229.99OEDRO 6.5" Running Boards Compatible with 2005-2023 Toyota Tacoma Double Cab, Aluminum Alloy Side Steps Nerf Bars for More Fuel Efficiency, Black TexturedAmazon
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- SAVE $10.00$89.99$99.99Onlyfire Camping Rocket Stove Outdoor Portable Wood Burning Camp Stove with High Fuel Efficiency, Real Campfire Stove for Outside Bonfire, Patio & Backyard Cooking, 12.7 x 12.7 x 11.4 InchAmazon
- $156.59OEDRO 6.5" Running Boards Compatible with 19-24 Chevy Silverado/GMC Sierra 1500 Double Cab (NOT FIT 2019 LD/Limited); 20-24 2500/3500HD, Aluminum Side Steps Nerf Bars for More Fuel EfficiencyAmazon
- $199.99OEDRO 6.5" Running Boards Compatible with 2019-2024 Dodge Ram 1500 New Body Crew Cab (Not for 19-23 Classic), Aluminum Alloy Side Steps Nerf Bars for More Fuel Efficiency, Black TexturedAmazon
- SAVE $28.19$171.80$199.99Ledkingdomus 6.5" Running Boards for 2019-2022 Chevy Silverado/GMC Sierra 1500 Crew Cab 20-22 Silverado/Sierra 2500 3500HD, Side Steps Nerf Bars for More Fuel Efficiency, Black Textured AluminumWalmart