Complain to Toyota, they are fixing some of these car for free. Here is the explanation
and the list of problem vehicles.
or black sludge
is a solid
in motor oil
caused by the oil gelling or solidifying, usually at temperatures lower than 100 degrees Celsius
. Sludge can be a major contributor to Internal combustion engine
problems, and can require the engine to be replaced, if the damage is severe. Sludge is usually caused by the presence of water
in the oil, and can accumulate with use. Ways to minimize sludge production and accumulation includes performing frequent oil changes, using synthetic oil
, and following the manufacturer's engine maintenance routine.
The following engines were reported by the Center for Auto Safety
and/or their manufacturers to have a problem with sludge accumulation:
1996-2001 Toyota 3.0 L 1MZ V6
1996-2001 Toyota 5SFE I4