Quote:
Originally Posted by tangomar
I have a 2000 GV 2.0L automatic (4 gears).
I get ~22 mpgs during the summer and 20 during winter.
Has anyone tried P&G in neutral? Can it be dangerous with an automatic transmission car?
To improve mileage I would like to:
- reduce front grid air dispersion for better aerodinamics (maybe not in the summer)
- autoRX next oil change / autoCERM the one after
- add fuel heater / add fuel vaporizer (brightgreen)
- acetone/xylene/5w40 mix (tried already, no results without EFIE)
- hho (don't know about this, it seems still a little dangerous)
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Its your money, but everything you've listed except improving aerodynamics probably won't have any measurable effect on your mileage. If there were cheap simple gizmos that did anything they would come on the car already.
Save your money and get a scangauge instead, then you can improve your driving habits and routes, this alone gave me around a
20% improvement.
Pump up your tires a bit more, I run 36 psi, get taller thinner tires next time you buy them.
Switching to synthetic oils in the difs, transfer case and engine helps a little, you need to lengthen your change times to make up for the extra cost.
Coasting in neutral with the engine running is ok for an automatic, just becareful how it goes back into gear, if it lurches or make bad noises then I wouldn't do it.
Drive 55 or 60 mph.
I think your tranny has a taller 4th gear than my 5th gear so you should be able to get better mileage on the highway at least.
Remove roof racks when you don't use them.
There are 100 tips at
Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com so try them out before you buy a fuel heater...
Ian
