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Is it Ever Too Late to Switch to Mobil 1?
 
Ask Your Stickiest Question. . . Or ask us something you’ve always wanted to know about using our products. We’ll sort through all the submissions and present the best questions to our automotive experts. We'll share the questions and their answers here.
Question:
Is it Ever Too Late to Switch to Mobil 1?
When is it too late to change to Mobil 1 synthetic oil? I have a 2001 car with 27,000 miles; is it too late?
-- Dave Corrnwell, Jupiter, Fla.
Answer:
It is never too late to change to a full synthetic motor oil like Mobil 1. Mobil 1 is fully compatible with conventional motor oils, semi-synthetic motor oils, and other synthetic motor oils, should it be necessary to mix them. But the advanced performance of Mobil 1 will be reduced by diluting it.
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