synthetic oil in packard v8

Posted by buddyfromvb On 2010/11/11 22:02:55

I just purchased another 56 clipper it is in excelent shape and the previous owner says he only uses sythetic oil i have always planned on rotella but am not sure weather to change back or do i have to stay with synthetic. what would i need to do to change back? ie flush and refill and what to flush with and how many flushes would be needed? thank you for your support.
ps/ i will add to owners registry soon vin is 5662 1983