Complete newbie here trying to squeeze 45mpg out of a '98 Corolla

[cfg83]

ch00f -

Wow, great stuff! I like your smiley license plate also, .

I hadn't specifically heard of the PVC sheets, (unless that is what they sell in Home Depot in the bath section?!?!?!). The Coroplast seems really hard to bend for smooth curves, so I tend to think of it as more of a belly-pan option. The PVC looks more useable for exterior "visible" mods.

CarloSW2

[blackjackel]

just to let you know, your water temp is probably causing your fan to kick in, which reduces your MPG because you're powering the fan through your alternator which gets power from the fuel. That's how it works in my 05 corolla and the 98's probably arent all that different.

Try purposely overheating your car over 200+ degrees and pop the hood and see if your fan isn't running....