Thank you... I keep my eyes out for other Porsche owners now.. As for the filter... Well they are supposed to be oiled... But not slugged with grease like that. I'm unsure what the P1 had in mind but I'm currently fixing his wire disaster for the amp and sub wires. I used to own Southwest Speed and I've never seen a nice car come in with such a disaster of an install done. And whoever did, bypassed the amp fuse with a cover wire... I'm sure grease got sacked in. There was oil on top of the block. Not sure where from but one of my days off I need to rip the intake off and find the source and clean it all off. But finding the economy issue is my next quest. Not sure if these MAF sensors can be cleaned. But till I find out I'm not taking any action.
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Originally Posted by silver-S
The mileage is definitely screwy. I have exactly the same car, in exactly the same city, and I'm averaging about 20-21 mpg driving around town. Last time I took it on the highway, I averaged almost 24 mpg.
I usually put 91 octane in my tank, but I have also used 89 octane and it runs fine. I find that my mileage is a little better with the 91 octane. But the car handles either just fine.
My indy mechanic advises keeping the stock air filters. Maybe you want to consider changing from the aftermarket part back to what Porsche designed the car to run with?
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