Czesc Andrzej, witamy na EcoModderze!
Where in Poland are you from? Is your driving mostly city or highway?
9 l/100km is already good in a minivan like that, but it is still possible to improve on. Check out what Orange4boy has done with his Previa:
The Golden Egg mod thread. Mostly minivan modding
Get rid of as many seats as you can! That weight is a killer if you drive mostly in the city. Tire pressure can be raised, and a grille block will help. Oh, and an engine kill switch for red lights
Pulse & glide works, even with the engine on, as long as you're not going too fast. And I know how hard it is to go slow in Poland!!
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread