2001 Chevy Impala OIL

2001 CHEVROLET IMPALA
137,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SALCIDO21
  • MEMBER
  • 1 POST
can i use 10w 40w synthetic oil instead of 5w 30w conventional oil, will this damage my engine our cause any knocking
Mar 4, 2010 at 6:15 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
it is not recommended to use synthetic after your vehicle has been "seasoned" with regular oil since it production. it may cause knocking, and is not worth the chance
Mar 4, 2010 at 6:27 AM
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