Comments by "Bond25" (@Bond2025) on "Double Your MPG By Hypermiling [Drivers Guide]" video.

  1. Inflating tyres does FA, I tried it on diesel and petrol cars since 2004. All different makes. Over-inflation causes much more heat, poor handling and makes the car unstable. The same for the scam of eco-tyres or low rolling resistance tyres, they make NO difference to MPG. I would like to see the proof YOU have of the tests you conducted to support your claims as I suspect you are just reading bits on sites and repeating them as some sort of "fact". The most economical speed depends on engine RPM and surroundings, the car will not be much different at 30mph compared to 33mph providing you are in the correct gear and driving sensibly. Driving in 3rd at 30 will increase fuel consumption in a petrol as the RPM goes higher, but not always in a diesel, it can increase MPG by being in the correct gear. The same as if you tried using 5th at 30mph, the engine would throw much more fuel in. The accelerator is what is linked to your wallet. Learn to plan ahead, let the car roll in gear to red lights and get ready to move off again if they change, take your foot off the accelerator going down a hill - the car cuts the fuel. AVOID scammers telling you to fit these awful tuning boxes they lie and say increase MPG, they don't, for your $500-600 you are getting a $10 voltage multiplier that takes a reading to or from a component and increases it. In most cases all it does is increase the fuel pressure. On a diesel that causes clattering when cold due to excess diesel injected, then black smoke from all that diesel now injected incorrectly that isn't used for combustion, but burning off in the EGR, turbo, Manifold and DPF blocking it up. The same goes for scammers selling a REMAP, who would you trust more? A backstreet company or major manufacturer that spent millions on research and development. The car is already set how it should be for max economy, power and emissions. Some backstreet garage is NOT going to increase your MPG unless they fit a smaller engine or reduce performance by restricting fuel being injected so it uses less. THINK and learn about engines and don't be scammed so easily. Save money by using the car less, removing excess weight from it and change your driving style.
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