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Old 08-23-2000, 02:10 PM
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Wow Jeff, what a killer article! Recommended reading for all of you guys.

OK I have heard that after having a lot of miles on your car using regular oil that it is a no no to switch to synthetic. Whats the reason for this?

The reason I ask is that I would love to switch to synthetic oil, but have 150k miles logged on my car with regular oil. I try and change the oil every 2k to 3k, but dont know what previous owners did.

So is there anything I can do to safely switch to synthetic? Or am I better off staying with regular oil?

It's a 87 300E.
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