Originally Posted by datsunfreak
Took a nice long, leisurely drive last week from my home in Fort Worth, TX to Los Angeles, CA.
After a lunch stop in Barstow, CA (we took I-40 instead of I-10) we headed south on I-15. When you pass through the Angeles National Forest just north of San Bernadino, there's a spot of highway where it drops from 5000ft to around 700-800ft in the span of about 5 miles. So I hit reset on the MPG counter and basically coasted down the hill. Started at around 65mph and even with a few brake checks we were doing 85mph by the bottom. This pic was taken just as the road flattened out. I really
wanted to see what happened when it hit 100mpg, but no such luck.
If I had put it in neutral instead of leaving it in gear it may have gone higher. But the world may never know. No hills even approaching that here in Texas.
nope, in neutral the car uses gas to idle. in gear while coasting over a certain speed, it uses absolutely zero.