Quote:
Originally Posted by DFW02S
You're not going to get good mileage with it. For me, 17 around town and 22 highway keeps me happy.
As to the secondary cats, swap them out and see what happens. It's not a big job. Test it first without the new sensors.
The RMS is another issue, are you comfortable watching it leak oil?
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It's the primary cats. The secondary cats are unmetered...
As to the RMS - I have turned wrenches on a number of flat engines but they were all made by Continental and Lycoming. I am accustomed to seeing oil weeping from these types of motors. My car is not leaking so much that it's marking it's territory (nothing on the ground). I ride a 40 yr old Triumph as well, so the Porsche seems quite tight to me in terms of fluids...
I just want to make sure that the only issue to come from a weeping RMS is the mess.