Hot answers tagged

12

It absolutely does use more fuel. What the choke does is creates a restriction in the carburetor, which in turn creates a higher vacuum so the engine will draw more fuel when it is cold. This is called fuel enrichment. It allows the engine to warm up and keep running, but at the expense of using more fuel to make it happen. When leaving the choke on for a ...


11

One of the reasons is loads of extra weight added by safety features and options. 8 airbags, 12 speaker stereo, 14 way adjustable seats, tons of insulation all around, power windows, power locks, 18 computers with hundreds of sensors, etc. Also consider the size/power output of the engine. It looks like your car had a 4 speed manual. Most cars today ...


3

All other things being equal- same car body shape, mass, road, tires, cylinders, strokes, fuel/air system and ignition etc, a larger engine operating at middling RPM and power will require slightly more fuel to overcome friction than a smaller engine also comfortably operating at middling rpm and power. For example a Triumph Herald with inline 4 cylinder, ...


2

There's a few things to consider. Vehicle weight: The argument has been made that weight as little to no effect at constant speed, and that it true. However, vehicle weight will determine how much power will be needed to accelerate at a decent rate, and that will largely determine engine size. Generally speaking and all other things being equal, larger ...


1

Thank you everyone, the actual answer is, as 'I have no idea what I'm doing' have posted a link in comments, no fuel is being injected at all, so modern engines consumes fuel at idle speed, when you switch in neutral and keep rolling, but it consumes no fuel at all if you just take your foot off and leave in gear, using an engine as a break. Plus you don't ...


1

So I have 2 vehicles I can confirm it is better to stay in gear. 1987 Dodge Daytona Shelby Z 2.2L MPFI intercooled turbo 5 speed stick. It has an in dash navigator with a live fuel usage readout. Leaving it in gear would consistently get better gas mileage than dumping it in neutral. Even coming down mountains, where I am actually accelerating in neutral,...


1

I have seen vehicles with multiple alternators, such as BASS competitions. I can hook up 2 alternators to my car but have seen 10 to 15 alternators hooked up to the subwoofer competition trucks. There would have to be enough power to run a small 5kbtu rv ac unit through your sunroof (with a custom painted fiberglass roof scoop to cover the whole unit ...



Only top voted, non community-wiki answers of a minimum length are eligible