【燃費向上第5弾】超お手軽！オーバーフェンダーを貼るだけで燃費も直進安定性もアップしたので、じっくり解説するよ

This time, in order to improve the fuel efficiency of the Probox, we focused on the airflow around the wheel wells and performed aerodynamic tuning. Not only did this improve fuel efficiency, but it also enhanced straight-line stability, making the car less tiring to drive on long distances. This video explains the work performed and the results of the verification. A viewer pointed out that commercial vehicles are allowed the same amount of width variation as passenger cars, so I checked with the Oita branch of the Kyushu Transport Bureau. The result was that it's acceptable as long as the width variation is within 20mm. I don't remember where I heard this, but I had completely misunderstood. I apologize for the confusion caused by my misunderstanding. Vehicle used for filming: 2017 Toyota Probox Van DX Comfort, 1.5L gasoline engine    • 【徹底静音化総集編】プロボックスで高級車レベルの静粛性を達成！防音断熱作業7選を詳し...      • 安くて手軽に燃費向上を目指す動画リスト      • 乗り心地を良くするカスタム集   [Amazon Sales Page] This is an affiliate link where I receive a small commission, but the product price will not change, so please rest assured. The income will be used for DIY materials and fuel costs for fuel efficiency testing. Universal Lip Spoiler: https://amzn.to/4m4VM7M Fender Mudguards: https://amzn.to/3Lqnxeh ---------------- ▼Amazon Affiliate▼ If you'd like to support me, I'd be happy if you tapped the link below when shopping on Amazon. I'll receive a small commission, but the price of the product won't change! All income will be used for video production! (Mainly for travel expenses for interviews) 【Amazon】 https://amzn.to/4naTYKO 【Donate Beer】 If you want to show your appreciation to Sei-san after his hard work editing, please click on your favorite from the list below. Sei-san will be very happy. https://www.amazon.jp/hz/wishlist/ls/... -------------------- Follow Sei-san's social media too! You can read about the latest developments and behind-the-scenes stories from filming! Twitter:   / gubigubinamach   #AerodynamicTune #FuelEfficiency #FuelEfficiencyImprovement #Probox #ProboxCustom #FuelEfficiencyImprovement #HowToImproveFuelEfficiency 0:00 Opening 0:29 Air accumulates in the wheel well 2:58 Overfender installation 7:53 Change in feeling 8:54 Change in fuel efficiency