ive had my 15 civic SI since march of 15. ive changed it every 5k and never had an issue with it. oil is cheap, engines and major repairs are expensive. id rather waste 50$ on an extra oil change or 2 a year, then need a 5k motor replacement.
My old 8th gen, I changed it once the maintenance minder popped to zero. Never sooner. My logic, easy driving, quality oil, I'm well within safe margins. That car was fed mobil 1 most of its life. Valvetrain stayed bright aluminum. OCI's we're near 6800 miles.
8k miles is just fine. I did that the entire time I've had multiple cars and they have gone a great distance:
I drive my car pretty hard, so 5k is preferred for me.
I do mine every 5k. It maybe adds one extra oil change a year for me, if that.
I’ve used pennzoil platinum or ultra platinum on my 8th and 9th gen si. Never burns a drop in the 3.5k mile interval changes and I beat the thing like I stole it most days.
I run Rotella in my 49 flathead and in my 91 civic.
I just switched to Valvoline EP 0w20 after using Mobile 1 all my life, for a very important reason...
...the easy to open top with a built in pour spout. So good.
Rotella T6 5w-40
5w40 if its drinking oil during vtec, I usually use Mobil but get whatever cheapest
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