2004 Mazda 3 - 305k miles, 10k OCIs with nothing but Mobil 1 5w20

Joined
Dec 19, 2018
Messages
3,609
Location
Vancouver
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Another testament to 20 grades, and 10k OCIs doing just fine...


 
Had a 2005 6. Sold it to the next door neighbor after I put 80k or so of mostly highway miles (my trip/touring car) The neighbor is approaching 200K now. With most of that being city driving. It has had a steady diet of Motorcraft 5w20 syn blend at pretty much 5k intervals the whole time (and the cheap wix cartridge filter available from o'reillys). We replaced the valve cover gasket last summer and it was as clean as the above photos. Good motors, good cars.
 
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