02 Civic Si. Out Havoline dino with a quart of QSGB at 4k to top up. 6700 miles on oil, 5 months. Quaker State 14612 filter. In QSUD 5w30 and a Quaker State 14612 filter. Plan to leave in for about 7-9k. Should be about February.
2011 Jeep Liberty @ 20,000 miles...dealer freebie oil change; Mopar contracted Purolator can filter and Pennzoil conventional 5w-20 (told it was Pennzoil but who the h**l truly knows)