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There's a popular belief that switching between mineral oil and synthetic oil in your car's engine is a no-no. Some say it'll cause leaky seals and internal engine damage. It that a myth or reality?

So what's the practical difference between synthetic oils and mineral oils? There's not much difference when you're just looking at two clean puddles of oil. But the advantage of synthetic oil is that its molecular structure stays more stable with temperature changes and extends the maintenance interval between oil changes.

So why the heck wouldn't you want to switch from mineral oil to synthetic? Keep reading to find out some of the myths and realities of these high-tech oils.

Full article at HowStuffWorks.com.

Total aggregation of HowStuffWorks.com.

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