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Free minder
Join Date: Nov 2001
Location: Middlessex county, MA
Posts: 9,398
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Break-in questions
Hi all,
My top-end rebuilt motor (3.0SC) is still in its break-in period, and I have noticed some changes: gas mileage went from 12.2 mpg on the first tank to 18.8 mpg on the second. The motor seems to have more power at higher rpms, and rev more freely now. I suppose those are normal changes with the rings sitting and making better compression. What was your experience with your rebuild? Did you notice those changes, or was the power the same from begining? I have about 400 miles since rebuilt now.
Also, when did you do the second oil change?
Aurel
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1978 SC Targa, DC15 cams, 9.3:1 cr, backdated heat, sport exhaust https://1978sctarga.car.blog/
2014 Cayenne platinum edition
2008 Benz C300 (wife’s)
2010 Honda Civic LX (daughter’s)
Last edited by Aurel; 07-23-2008 at 03:24 AM..
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