2008 Hyundai Accent 1.6L 163405 miles
7435 miles OCI 11 months
Out M1 5w30 HM W 150 mL of Ceratec 3L
In M1 5w30 HM w 100 mL of Ceratec 3L
Reused Fram XG9688 oil filter
Added a quart over the 7435 miles
2015 (?) Nissan Altima, 107K, 9K OCI
Out: ST 0w20 HM, Tearolarer Pure 1 or something like that.
In: ST 0w20 HM, Fran XG7317
Car was a high mileage (80K) Hertz rental.
Has been perfect.
I got it for a friend; I have been out of commission due to surgery, so the oil service has gone long.
I will run the XG for 2 oil changes.
2018 Silverado LT2 Crew Cab Z71 5.3.
14513 Miles 7293 Mile OCI.
Out 8 quarts 0W20 A.C. Delco Semi Syn A.C. Delco filter.
In 8 quarts Napa 0W20 Syn and Napa Gold.
2018 Silverado WT 4.3.
Out 6 quarts FF Factory GM filter.
In 6 quarts Pennzoil Gold 5W30 and Purolater filter.
OCI around 10150 miles.
2002 Mustang GT 2v 4.6 V8
Castrol edge high mileage 5w-20
STP extended performance filter
Supertech full synthetic high mileage 5w-30
I had used 5w-30 synthetic (in various) high mileage flavors in this car, forever (16 years!) but switched to 5w-20 this last change. Went from a half quart consumption over 6-8k Miles to nearly a full quart in 5k. Not happy. Switching back to 5w-30 for this go-round. Hopefully it will keep the oil burning in check. Car got a complete work over (plugs/coils, PCV, MAF, cleaned TB, new belt, radiator hoses, fuel filter, IAC, and every fluid in the car down to brake fluid bleed/flush) this last oil change timeframe.