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1990 Mazda RX-7 Question: oil change interval



Visitor, Benicia, CA, September 13, 2010, 10:08

How often should the oil be changed?

2 Answers
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  • Answer #1

    shadetreeauto September 13, 2010, 11:57

    3000 miles is a good#

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  • Answer #2

    Hal... (see my shops), November 24, 2010, 12:25

    3-5K for conventional oil. Up to 8K for premium synthetics. Pull the dipstick and if th eoil is darker then a good Amber Ale then it's time. The dirt on the oil gradually destroys the bearings. Happy Holidays.

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