no, higher rpm's= more gas... the engine should be using the same ammount of gas at any given rpm in any gear....

so 60mph in 3rd wastes more gas than 60mph in 5th.

 

Not if you have to floor it to accelerate.

Say you shift at 2k...imagine how much throttle it requires to get up to speed. Now, if you shift at 4.5k like I do at a 20% throttle position, you are using less gas and accelerating faster.

Now if you are cruising, 60mph in 3rd is wasting gas, so 5th would be a better choice.

 

good point... i was trying to think of how to say it

you>me

 

Naw.

I got what you were saying, but you forgot to factor in the acceleration and throttle position part. You were right on the money for the cruising part.

 

JUST A question, someone told me that putting the car in neutral, decellerating, and then shifting into another gear was bad for their car. Also, someone else told me that it didn't matter on a manual, only automatics. (automatic-> going from d, to n, then back to d).

 

all you should be doing to keep your gas guzling down on an automatic is not accelerating fast

dont mess with it, it is an automatic, let it do it's own thing

 

I would personally run fuel system cleaner, change the air filter and spark plugs, all real cheap to do which can give you some more MPG's

 

my car actually started giving me better fuel economy after i installed a cold air intake and catback exhaust.

of course i was pinning the throttle every hance i got (just to hear it), but after that when i drive it better Im getting pheonominal fuel economy (32-36 mpg hiway)

 

Same here. I think it's because the engine doesn't have to try as hard to such air.

 

Regular maintenance like oil changes, Fuel filter replacement, spark plugs, plugs etc will help. Also going easy on the gas, and keeping the RPM's Low, as mentioned earlier. Also you can make sure your tires are inflated with the correct pressure, cuz if they're too low, yea, you that can DEF affect gas mileage. you can also add a 1$ bottle of fuel injector cleaner