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Old 03-02-2013, 02:18 PM   #5
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Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
Originally Posted by Speedster986 View Post
TY on the advice!

Can you comment on my MPG ratings?

Since the plenum upgrade, the Porsche on board computer indicates substantial increase in HWY driving 37 MPG (results of 3 months of monitoring).

Please comment.... thanks!
Onboard computer is often misleading and inaccurate regarding mpg. To check your results, log your mileage, log gals used, divide miles/gal.
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
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