2014-2018 Mazda 3 Skyactiv Discussion
2015 mazda 3i AT, 68k miles.
14k miles between oil changes, mostly highway driving.
dont remember which brand 0w20 i used for this 14k miles. (i've used Penzoil, Mobile 1, Castrol, Valvoline, and Quaker. whichever is cheapest at the time. :surprise:)
"This oil was in use for about 14,000...