Originally Posted by lifeisviewtiful
ok guys just got a 92 corolla from down in miami. the oils look a little more than brown so am gonna go ahead and change the oil. i wanted to know if there are any engine additives or anything similiar that would make a difference and help remove sludge and any other deposits. i see prolong and others in stores. which if any can i use to i guess "clean" out any potential sludge that may be deposited in there. lmk
replace all the oil with water, run the car until it shuts itself off
that's how you know it's ready for new oil