SludgeMobile2 
2001 Toyota Sienna Minivan XLE 4dr Minivan (3.0L 6cyl 4A)
Another SludgeMobile
 Our Sienna also developed 'engine oil 
gel'. Guess that's PC for Sludge. We 
call it the sludgemobile too. Dealer 
just rebuilt the engine < 28k miles. 
Didn't fight either. We have 2 friends 
that have had rebuilds too.  One got 
back 4000$ on repairs. The brakes 
squeal, the AC broke < 12 miles, O2 
sensor broke, seat back fell off, 
visor broke (used about 5 times). 