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Senior Member
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Join Date: Mar 2016
Location: West Bend, WI
Posts: 2,339
Real Name: Mike
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Senior Member
Join Date: Mar 2016
Location: West Bend, WI
Posts: 2,339
Real Name: Mike
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I would manually scrap off the sludge on the valve cover but be careful not to crack it or break it. You can try using some carb cleaner or other solvent to help scrub the sludge off the cover.
I would try doing 1500 mile oil changes with a healthy dose of marvel mystery oil in the oil. It will slowly break up the sludge without plugging up the oil pickup screen. You'll want to use a decent synthetic oil also, it will help to slowly scrub that crap away.
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1997 SR5 4x4 Auto, 99' tall coils up front, OME 906's, Truetrac LSD, Airaid MIT
1999 SR5 4x4 Auto for parts
2011 Camry SE V6
2011 Highlander Limited
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