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How often do you change your oil?

20312 Views 22 Replies 13 Participants Last post by  Rallytaff
Wondering how often other Fiesta ST owners are changing their oil. I'm pro tuned to 93 octane and more boost = more pedal for me. That being said, I changed my oil at 1000 miles after break in, then 4000 miles, and now at approaching 11,000 I feel guilty that I havn't done my oil change at the 3000 mile mark, and that persistent Oil Life light on my dash is definitely not helping.

Ford's 10,000 interval between oil changes seems crazy long to wait to change oil on a car this fun to drive fast. Others thoughts on the OEM recommendation between oil changes?
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First change was at 1200 miles, every 5K since.

The 911 is a totally different story- I'll only go 3K tops, so the zinc doesn't get too depleted.
What year 911? I'm guessing some air cooled variant since you are concerned about zinc. What oil do you use in it? I have a 1986 911.
It's an 85. RoW model imported by a doctor here in AZ and federalized here. My mechanic uses Valvoline VR1, 20W50.
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