Guys,

Any idea how can I possibly lower the fuel consumption of my '90 corolla gl? On the average nasa 6km/li lang eh. Kahit bagong tuneup, bagong oil filter, bagong air cleaner. Tried experimenting on using diff brands of gas pero walang significant effect. I also try as much as possible not to be heavy on the gas pedal. My friend recommended installing gas saver but I'm afraid na baka humina ang hatak. May pag-asa pa kaya to? Or talagang that's already the best I could get with an old car?

Thanks in advance.

Manley