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Old 01-28-2013, 10:27 AM   #13
Focus Jr. Enthusiast
Join Date: Mar 2007
Fan#: 44846
Location: Crete IL
What I Drive: 2003 Silver Focus SE (SPI-SOHC)

Posts: 41
FF Reputation: 1 Ispi Good Standing Member
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My 03 SPI is at 155,000 miles and going strong

I really baby it while the engine is cold, and use 2 oz. Lucas upper cylinder lubricant at each fill up. The UCL seems to give me an additional 1 MPG, but may also help keep the valves clean. May need some luck to get to 200,000 miles with out the inevitable valve seat drop.

I will be taking my chances for now, but will consider pulling the head and bringing it to a shop for the usual service (hardened seats, etc.)
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