best car for gas miliage hill climb racing 2

Why? Gasoline stores more energy than ethanol (119,000 Btu per gallon vs 80,000). Gasoline that has been cut with 10 or 15 percent ethanol, called E10 or E15, is an mpg killer. Reducing loiter time-or idling while waiting for traffic to clear-saves gas. A fully warmed-up engine will remain at an efficient temperature even if it's parked for 30 minutes.įedEx does it, and the MythBusters proved it works: When city driving, make as many right turns as possible, even if it means going a few hundred yards out of the way. So if you have a three-stop run, hit the farthest destination first, then work your way back home. A little bit of foresight will stretch your fuel economy.Ĭars get better fuel economy when the engine is warm. Making a run to the dry cleaner and then picking up the kids after soccer practice? Don't make separate outings. Reduce the miles you drive by running all your errands in one trip. Few drivers check and adjust their tire pressure often, but it's a good idea to do it once a week. Keep your tires properly inflated, because low pressure increases rolling resistance. Play icon The triangle icon that indicates to play Fuel-Sipping Basics But at 60 mph or higher, keeping them closed and the air conditioning running will burn less fuel. The answer? Below 55 mph, open the windows and leave the a/c off. But aerodynamic drag rises exponentially with speed-the faster you go, the more the open windows hurt efficiency. Then we opened all four windows, one at a time, and lost 1 mpg per window until we were back at 24 mpg.

Driving at 55 mph with the a/c running, we got 24 mpg turning it off bumped us up to 28 mpg. (We'll leave aside the option of sweating it out.) PM's testing settled the issue. It's a fierce efficiency debate: Open the windows in summer to avoid running your energy-intensive air conditioner, or keep the windows closed and the a/c on to preserve your car's aerodynamic profile. 3: Close Windows and Use a/c at High Speeds But in our testing we found that taking 15 seconds to accelerate to 50 mph used less fuel than taking 30 seconds to reach the same speed, because the car entered its top, fuel-saving gear sooner.

The best acceleration rate varies with the vehicle, gear ratios and weight.

How can that be? Cars get poorer fuel economy in lower gears, and accelerating too slowly prevents upshifting at an efficient rate. But it turns out that nursing your speed up to the limit too slowly also lowers mpg. Conventional wisdom says that jackrabbit starts consume more fuel.

Best car for gas miliage hill climb racing 2