Hi..I have a 99 Civic LX (D16y7)and just wanted to know for best fuel economy at what speeds it's best to switch gears from 1st to 2nd to 3rd to 4th on a manual transmission? At what speeds do people usually switch gears?

 

Jus keep the RPM's as low as possible but maintaing enough power to accelerate efficiently. Every car is different and everyone drives differently.

 

You want to change gears no higher than 2500 rpm. I'm assuming that you don't have a tach in there, so it's right about (if I remember right) 15, 27, 39, 50 in mph. It says in the manual, if you have one. These might not be 100% accurate, but it's close.

 

It sucks I don't have a tach..I was looking in the manual but could not find any info. Do you know what page in the manual it tells you the speed to change gears?

 

I got better mileage with my EX trans w/4.71 FD than I did with the stock Y7. I get better mileage with my EX trans (stock FD) and MFactory close gear set than I did with the EX/4.7 setup. RPM doesn't matter, throttle does. I'm at 5k at 80 in 5th and all it takes to keep the car moving is an ant crawling on the gas pedal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">RPM doesn't matter, throttle does.</TD></TR></TABLE>

x2. A good example is if you coasted down a hill at 5000 or at 2500... 0% throttle -&gt; no gas either way.