How do I remove oil sludge from engine?

1994 NISSAN SENTRA
135,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
SLICKRICK
  • MEMBER
  • 7 POSTS
put too much oil in engine
Sep 8, 2011 at 4:53 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,308 POSTS
How much is too much oil? Overfilling the oil is not what forms sludge. There are a lot of really good additives in today's oil so sludge buildup shouldn't be a problem if the oil is changed on schedule. If the buildup is really bad, an old trick is to add about a quarter of a quart of automatic transmission fluid to the oil, drive the car for a day or two, then change the oil and filter.
Sep 8, 2011 at 6:17 AM
Advertisement