Nice and simple
You cover the bottom grille either from the inside (good) or from the outside (better) with black or clear plastic). Once you stuff both grilles your engine temp should be 5-10°C higher, impoving its efficiency (hypermiling a modern turbodiesel usually doesn't allow it to reach optimal temperature).
Quote:
Originally Posted by tinduck
BTW, this is my warm parking spot; you can see an air duct in the upper left corner of the first photo which emits air with 26°C. Outside temps are around 4°C at the moment, this should also help FE :-)
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Could you direct that warm air into the car and/or under the hood?
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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