engine brake-in

2011 FORD F-350
V8 • 4WD • AUTOMATIC
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ETYSON
  • MEMBER
  • 1 POST
2011 Ford F-350 super duty 6.2 gas engine. Is it better to brake- in engine with regular 5-20 oil or use synthetic, will using regular 5-20 void warranty?
Jan 12, 2011 at 1:10 AM
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DOCHAGERTY
  • CAR REPAIR CONTRIBUTOR
  • 9,603 POSTS
Ford recommends synthetic, I can't speak to the possible warranty issue, why risk it, put the good stuff in there and sleep better at night. Or in the day, I dont know your schedule.
Jan 12, 2011 at 1:21 AM
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