871 oil pan

[Rawze]

The best way to extend your drain intervals is to get BETTER FUEL MILEAGE!

Quote:If your average fuel mileage every 10,000 miles is ...

less than 5 MG -- Change your oil every 8,000 miles or so.

5 - 6 MPG -- Change your oil every 10,000 - 12,000 miles or so.

6 - 7 MPG -- Change your oil every 12,000 - 15,000 miles or so.

7 - 8 MPG -- Change your oil every 15,000 - 18,000 miles or so.

8 - 9 MPG -- Change your oil every 18,000 - 22,000 miles or so.

above 9 MPG -- Change your oil every 22,000 - 28,000 miles or so.

These recommendations are based on more than just engine wear alone. They are based on getting the most engine life vs the cost of oil changes themselves, and the fact that soot and other deposits are going to keep building up in your engine more rapidly than you can flush them out. A bypass oil filter system can extend this, but not by the claims they are making. You would be good to get an extra 8,000 - 10,000 miles on your oil before having to change it anyways. That is my experience on it, and is what I tell others that ask about these types of systems, etc.

reference...
http://rawze.com/forums/showthread.php?t...617#pid617