Originally Posted by ChrisD46
Just curious : If during a oil change interval I average 24 MPH in suburban driving outside a large city (ATL) in my 2017 Sonata 2.4L GDI non - turbo - then would this be considered a normal OR severe OCI (for Hyundai is 3,750 (severe) and 7,500 (normal) ?
Amsoil will only warrant their 25,000 mile oils if it's all done in under 700 hours...35.7MPH average.
THey define "Severe" as 15,000 miles, or 700h...21.4MPH
At an average of 40+mph, my Colorado will extend the nominal 15,000km to 16,000 (10k miles), but short trip like the dealer did before I bought it would have been 6,000km (4k miles).
So, I'm thinking that your use is probably "severe(ish)"...