A customer with a '13 Kia Optima 2.4L GDI came in for an oil change today. His last one was in the late summer, at just over 60K miles - at the time I put in Valvoline Maxlife (red bottle) 5- or 10w30 and a Napa Proselect 21334 filter, told him to change it again at 70K which would have been in the 8,000 mile range. No OLM but I believe mfg. suggested OCI is 7,500 on conventional.
Today his car showed 82,000 miles and change - adding up to at least 18,000 miles on the oil, more than likely over 20K. Still sounded fine, he didn't mention any problems the car was having. I put in Synpower 5w30 and a Napa Gold filter this time, extra $5 for the upgrade on the house.
I saved the Proselect and will cut it open and post up when time permits.
I also put VML in my father-in-law's 300,000-mile Chevy 1500HD that sees around 30K a year... and gets changed Fourth of July and Christmas, no more, no less. I reckon it's good stuff.
Today his car showed 82,000 miles and change - adding up to at least 18,000 miles on the oil, more than likely over 20K. Still sounded fine, he didn't mention any problems the car was having. I put in Synpower 5w30 and a Napa Gold filter this time, extra $5 for the upgrade on the house.
I saved the Proselect and will cut it open and post up when time permits.
I also put VML in my father-in-law's 300,000-mile Chevy 1500HD that sees around 30K a year... and gets changed Fourth of July and Christmas, no more, no less. I reckon it's good stuff.