How do I save fuel using a manual transmission?

Question

Ok so I have heard a few different theorys but i really want to know.

I have heard that using the engine to slow the vehicle down (e.g driving and just lift off the gas but leave it in gear - but remove my foot completely from the pedal and brake)

or do i need to pull the stick out of gear and use it to coast down.

Some states this is illegal but i am willing to do anything to save gas.

Second - shifting by bypassing the clutch - i do this occasionally - while shifting i get my rpm's high enough that it just drops into the next gear.

third: how high should i let my rpms go? 3,000 is usually where i dont let it go any higher but sometimes it does go higher than this....

Answer 1

Forget all that.  The actual gas you save is minuscule compared to the amount you use during the actual driving.

There are few thing you can do to save (or maximize) gas MPG. First get a tune-up.

(1) spark plugs

(2) spark plug wires

(3) distributors, coil, rotors (if you have them).

(4) new air filter

(5) PCV

(6) correct tire pressure

(7) clear the trunk of useless heavy items

(8) spray clean MAF sensor.

====

Forget all those "SAVE GAS" scams.  This was on NBC morning TV show.   The difference is as much as 38% (their claim).  There are very simple rules to save gas:

(1) drive slow - not too much past 55

(2) accelerate slowly

(3) don't brake unnecessarily

(4) use cruise control - whenever it is safe to do so.

Don't coast - it is NOT safe (to coast in Nuetral) and it does NOT save gas.  It only saves gas, if you are planning to slow down (exiting, tolls, traffic).  Coasting then accelerating again is LESS efficient than just cruising.

The above really works. Using those simple rules I was able to drive from Boston to NYC (210.5 miles) on just 5.112 gallon (94 Civic - 5 speed).  That's 41 MPG (94 Civic 187K miles).  Actually I was speeding at 72 MPH so I could do even better at 55.

WOW !!

As simple as that...

Good Luck...

Answer 2

Hello

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Answer 3

shifting into neutral is the best way to conserve gas...in some places it's illegal; and it is kinda unsafe...but i don't think you're in any danger of getting caught doing it ;)

i'd just do that, dont accelerate too quickly, and keep your rpms from going far above 3k

you'll get reasonably better gas milage this way; but it won't work miracles or anything