there is alot of talk about boosting your mpg by doing simple things like tire pressure and reg. tuneups

but have any of you here of any good ones?

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Cyberwaste

Anything that relieves your engine of any extra burdens will give you a mpg increase along with a power increase. Exhaust mods that increases flow is one of them. Under drive pulleys are another. Cold air induction can sometimes help if it replaces a particularly restrictive air box.

i heard people that shut off there car at red lights

but you would think that would be hard on your engine

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Cyberwaste

Shutting off the car at redlights will not do anything.. starting up an engine requires more gas and puts more stress on everything than idling for a few minutes

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2003 Ford Mustang SVT Cobra
4.6L DOHC V8 - 6 speed manual
520rwhp - 525rwtq at 16psi on stock blower
2002 Ford Mustang GT
4.6L V8 - 5 speed manual

thats what i thought

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Cyberwaste

like it was already stated... less restrictive exhaust and less restrictive air intake.. i was wondering if a performance intake manifold will add both power and MPG.. i think a well oiled machine will help too.. high performance oil filter to make it last longer too :-) (or atleast i think so)

knowing when to use your AC helps too. It's more fuel efficient to drive at city speed with your windows open, yet at highway speeds it is more efficient to have the windows up and the AC on. At the same time go easy on the accelerator, coast to stops whenever possible, and stick close to the highway speed limits when you are on the highway. 55-60 is usually the most efficient speed for cars, any more than that and the wind resistence builds up to a point where it actually becomes much less efficient. That speed is going to vary from car to car as well. If you want to start getting drastic you can convert your car to manual steering and remove the power steering pump entirely. You can also streamline your car by taping up panel gaps and other areas that cause drag and strip your car out as much as possible. The less weight there is to move around, the less fuel you need to move the car.

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2001 Chevrolet Monte Carlo SuperSport

what about tires
there size and weight

i know that the rims i had on my civic where realllllly heavy and at highway speeds my would sit 300 rpms lower then with my steelies

but with out my rims on my car was faster and in town my car would also accelerate faster to

and those rims didnt look the greatest lol

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Cyberwaste

I know some may speculate this but the Brown Gas "hydrogen" additive system does improve most vehicles mpg's and actually works. A guy my best friend works with did it to his early 90's Toyota p/u last year and now gets 52 mpg. So far, no engine problems (it actually runs smoother from what he says). Looking at the diagrams for it, you can probably build one for less than $50. They say you can expect an increase of at least 30-40%. Some people have claimed 60-70% with the correct mixture.The kits that everybody is selling are slightly expensive, but like I said, if you know a little about chemistry(it's very simple priciples), you can build a basic kit for less than $50 from the hardware store. I'm not sure what the effect is on a performance engine but from what I know, chemically, it should noticeably improve your engine(unless it's brand new). I plan on installing something like this on the eclipse once I get it rebuilt. I'll let you all know how it turns out.

hey i saw these grounding kits on ebay a long time ago that claim they add 10 hp and increase mpg buy 5 on any car

i laughed at it

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Cyberwaste

yeah kits like that are just bogus ways to steal money. The only trick to fuel economy is just efficiency. Cut weight, cut restrictions in the drive train, oil everything, and make your car as aerodynamic as possible, as well as just driving smart. No bolt on kit is going to give you instant mpg, it's a combination of things.

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2001 Chevrolet Monte Carlo SuperSport

and tire pressure makes a difference

and the right octane gas for your engine

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Cyberwaste

Octane isn't as big of an issue really. Certainly use what is recommended for your engine, but if your engine is designed for regular unleaded, you're just throwing money away if you try using Premium since you really won't see as much of an increase to really warrant the extra $.10 a gallon. Certainly if you engine is designed for Premium and you try using regular or super unleaded you fuel economy (and engine power output) will suffer of course.

If you are really despirate for fuel economy though you can also consider a new fuel map on your ECU. From the factory many cars have a very power and economy neutral fuel tune so the vehicle drives in such a way that it appeals to a broad buyer persona, so you can adjust the engine responses to be more economical. Performance suffers of course, but it is a drastic possibility.

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2001 Chevrolet Monte Carlo SuperSport

My tricks for getting more bang for my buck with fuel:

-run synthetic engine oil and use a K&N oil filter
-install a K&N air filter, it may cost a lot but better off in the long run
-use high output performance spark plugs like those new E-3 sparkers
-run a fuel system cleaner annually, I usually do it ever 2 or 3 months
-remove any unneccesary out of your trunk to save wait
-I usually shift my transmission into neutral when I'm at idle at a stoplight
-don't floor the pedal, ease into it a little, flooring will use up more gas
-keep your car in pristine condition. Replace your suspension whenever needed, keep your vehicle aligned, keep your engine and emission systems in perfect working order
-keep your tires properly inflated

I also heard from some automotive show that putting acetone in your gas tank gives you better gas mileage by about 10 MPGs on the test car

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Keep feeding me your denial and hate, from that I will create

syn. oil isnt for every car tho

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Cyberwaste