Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?

A diagnostic was done and it was confirmed that my rear main oil seal needed to be replaced. I had my rear main oil seal replaced in my 1995 Camry buy my machanic. They stated that oil is pushing past the new main oil seal. They stated that when they open the oil cap they can see oil bubbling out like air is trapped and is compressed some way causing the oil to leak/pushing past the new seal. They stated that all valves and the oil pump is working fine but there is a lot of sludge. What could this be from and how can I resolve it? Will a oil flush possibly stop this? The car has 241,000 miles on it and runs fine. Please helpful answers only!Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?
Lol, so lets analyze this, first of all a rear main seal wont cause sludge, it causes an oil leak between the engine and tranny, so obviously you have more than one problem. If you have sludge on your oil cap you need major engine work, head gasket or intake gasket. You have two totally irrelevant problems.Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?
The new seal may leak from internal pressure,changing the pcv valve might help.Or with high miles,the crankshaft may wobble very slightly making the seal difficult.I sometimes use an oil additive called Main Sta,from the auto parts store.It swells and softens the rubber seals without doing any harm.And it does some amazing things to stop oil leaks.I personally wouldn't attempt to do anything about the sludge buildup.Pieces of sludge can break loose and clog the oil pump screen and passages if it's messed with.Some things are better left alone.Good luck.
Toyota did have a problem with sludge in the early 90`s and it affected the corrola`s mostly. But did hit the other makes as well . I would suggest an engine flush added as an aftermarket product and used as directed. Change your oil after the required period, drive for 2 weeks and do another oil change to remove the remaining sludge from the first flush. You should notice an improvement in power and mileage within the first week. Don`t forget to change the pcv valve and air filter if you have not done so recently. I personally do not believe in the 20 min engine flush they do at the shops nowadays. If you want to go that way I would let Toyota do it as then they should allready know what should happen when they flush it
Try putting in new pvc valve. That vents crankcase pressure.