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cfg83 · 08-28-2008, 06:26 PM

sporkinum -

Welcome to EM!

I agree that a gas with more energy content could get you better MPG. But, I am also guessing that other members would suggest doing a longer test with gasohol because of the tank-to-tank variance. Maybe the ECU/PCM hadn't adjusted to it.

I got lucky with my SW2 because I could swap in an economy 5th gear from an S?1 :

http://ecomodder.com/forum/showthrea...swap-2779.html

I don't know anything about the L-Series manual trannys. If I had one I would be scouring the earth for a compatible taller 5th gear.

Hrmmmmmmm. The Chevy Cobalt XFE has a tall 5th Gear and uses the Ecotec (2.0 or 2.2, I can't remember). IF (big if) the trannies are the same, there may be a taller 5th gear in your future :

http://ecomodder.com/forum/showthrea...lass-2040.html

Hrmmmmmmm #2. The Saturn Astra also has an Ecotec engine. It may be worth looking at it's tranny spec also :

http://ecomodder.com/forum/showthrea...tank-3803.html

CarloSW2

08-28-2008, 06:26 PM	#2 (permalink)
cfg83 Pokémoderator Join Date: Dec 2007 Location: Southern California Posts: 5,864 1999 Saturn SW2 - '99 Saturn SW2 Wagon Team Saturn 90 day: 40.49 mpg (US) Thanks: 439 Thanked 532 Times in 358 Posts	sporkinum - Welcome to EM! I agree that a gas with more energy content could get you better MPG. But, I am also guessing that other members would suggest doing a longer test with gasohol because of the tank-to-tank variance. Maybe the ECU/PCM hadn't adjusted to it. I got lucky with my SW2 because I could swap in an economy 5th gear from an S?1 : http://ecomodder.com/forum/showthrea...swap-2779.html I don't know anything about the L-Series manual trannys. If I had one I would be scouring the earth for a compatible taller 5th gear. Hrmmmmmmm. The Chevy Cobalt XFE has a tall 5th Gear and uses the Ecotec (2.0 or 2.2, I can't remember). IF (big if) the trannies are the same, there may be a taller 5th gear in your future : http://ecomodder.com/forum/showthrea...lass-2040.html Hrmmmmmmm #2. The Saturn Astra also has an Ecotec engine. It may be worth looking at it's tranny spec also : http://ecomodder.com/forum/showthrea...tank-3803.html CarloSW2 __________________ *What's your* EPA MPG? Go Here and find out!** American Solar Energy Society