2007 M35 in my sig with 106,620 miles
OCI: 4,346 miles, 11 months
Out: 2 quarts QSUD 5w-30, 3 quarts QSGB 5w-30, Union Sangyo filter
In: same mix & Bosch D3300 for two intervals
Friend's 2001 Lexus LS450 with 165,855 miles
OCI: about 4,600 miles, 8 months
Out: Lexus dealer bulk oil & Toyota filter
In: 1.5 qts Miles SXR synthetic 5w-30, 4 qts Supertech High Mileage 5w-30, ACDelco PF53 filter
PS: the whiz at the Lexus dealership had not installed a drain plug washer
OCI: 4,346 miles, 11 months
Out: 2 quarts QSUD 5w-30, 3 quarts QSGB 5w-30, Union Sangyo filter
In: same mix & Bosch D3300 for two intervals
Friend's 2001 Lexus LS450 with 165,855 miles
OCI: about 4,600 miles, 8 months
Out: Lexus dealer bulk oil & Toyota filter
In: 1.5 qts Miles SXR synthetic 5w-30, 4 qts Supertech High Mileage 5w-30, ACDelco PF53 filter
PS: the whiz at the Lexus dealership had not installed a drain plug washer