1999 Acura Integra at 135k
I have been using Advanced full synthetic 5w30 for a long while - change every 5k - my annual mileage might be around 7k.
I noticed that the oil is getting darker towards oil change at 5k - this time it was worse when I changed at 4.7k (this time more came from freeway driving) - it used to show no difference when driving before and after an oil change. But there was considerable difference this time around in drive quality.
So I am re-evaluating what to use - there is also High Mileage oil. There is no leak yet nor oil loss (incidentally I have to take it for an early brake oil flush 16% early - perhaps all points to age). Mobil 1 website has all these oil options for my car https://mobiloil.com/en/product-selector?Year=1999&Make=QWN1cmE%3D&Model=SW50ZWdyYQ%3D%3D&Engine=TFMgNC1DeWwgMS44IChCMThCMSkgKEdBUyk%3D
It looks to me Extended Performance more aligned since my annual mileage is under 10k. Then change every yr instead of 5k? Should I go for better filter too - I have been using O’Reilly’s brand.
What would be better for my car?