This is one of those topics of discussion that most people get wrong. In older petrol cars that used carbs, coasting or freewheeling downhill would save you fuel, and this method worked quite well for those older cars. Modern petrol cars with Electronic Fuel Injection, do not work the same way. Modern cars with EFI have a Fuel Return Pipe which sends unused fuel back to the tank, (more…)
Yes it will, I would recommend increasing tire pressures to improve fuel economy, and you should inflate them to the maximum allowed for your tires. (more…)
If i fit bigger wheels will I get better mpg?
Again the answer is yes, this approach can make a significant difference to economy, but it comes at a price, and care must be taken. If you go too big with your wheel/tire combination, you may experience the tires rubbing against the wheel arch! You should consider the following points before trying this method. (more…)
In a nutshell, Yes, but only if you are changing from standard steel wheels to alloy wheels. (more…)
Yes it normally does, but if you let the revs drop so low, that your engine starts chugging, or struggling in any gear, then that will hurt fuel economy. If it’s chugging, then you need to drop a gear, ie chugging in 3rd, you drop to 2nd. What you must understand is that, (more…)
