I have a 1999 toyota corolla with an engine oil sludge problem.?

I've been hearing alot of information on things i can use to clean out the sludge without having to overhaul the engine. I would really value your thoughts on which product is best out there. Which product would be better to use? BG Quickclean, Marvel mystery oil, amsoil engine flush and Seafoam. Which one is the best to use? thanks for your opinions.I have a 1999 toyota corolla with an engine oil sludge problem.?
If the sludge is really bad, you shouldn't drive it.


That means that it should be cleaned out well


before driving. Most of the products you mention


are designed to clean an engine while driving, but


were not designed for a person to intentionally


drive one that is real bad. They were designed to


just help get a lightly sludged engine get clean.





If you want to clean it without tearing it down,


you should use a multiple flush method. You would


drain all the oil, put on a new oil filter, then fill


the crankcase with 2 quarts of transmission fluid, and


the rest of diesel fuel. Start the car, and run it at an


idle for a couple of minuets, then drain the pan, and


do it all over again. You should do this three times,


then again change the filter, and put in a good


detergent oil, and one of the products you mention.


Any one of them is really equal to the others when


you have a severe sludge issue. The flush with diesel


fuel and transmission fluid has already flushed out


all the large, loose pieces, plus some of the caked


on sludge, and presoaked the remainder that can be


cleaned with one of the other products.





Just do not run the engine at any fast speed when you


are using such light weight oil as the trans fluid, and


diesel fuel. They are both oils, just very light weight.


Transmission fluid is also a very high detergent type.


You can add a pint of that to every oil change to help


keep your engine clean. It will also act as an engine


top oil to add to your gas. About a half pint per tank.





One bad thing about cleaning your engine of all the


sludge. If it is an old engine with a lot of wear you


are quite likely to start burning more oil. When you


clean it you clean out a lot from the rings on the


pistons, and if those rings are worn, the only thing


that was keeping them from allowing oil to pass


them was the sludge.I have a 1999 toyota corolla with an engine oil sludge problem.?
I'd go with the Seafoam along with an oil change and filter. Drain and repeat after a few hundred miles. Then start using a synthetic oil.