The reading I've done indicates that synthetic will not damage your engine or it's seals. It can loosen sludge so dropping the pan & cleaning it out would be advisable. Google Synthetic Oil Myths and you'll find a lot of good reading.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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