Quote:
Originally Posted by JimD
...I changed the oil on a Toyota pickup with nearly 200,000 miles on it Saturday. The owner changes oil and filter very frequently and it functions like a new engine. Experiences like this have convinced me to spend a little on frequent oil changes.
Jim
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^^ +1 Jim.
For engines that are already gumed up (by long OCI's) I have seen mechanics use a liter of ATF added into the engine oil and drive the car for a little bit. Then do an oil change. There are also comercial made products that clean the engine internals.