This is going to be a long one. Annual maintenance.
1963 Chevrolet Corvette, 327/4 speed, 32k
Out: Unknown/can't remember, FRAM PH30
In: HK 10W-30, whatever the carquest equivalent to the PH30 is
1965 Mustang 289/C4, 87k
Out: Unknown/can't remember, CarQUEST 51515
In: HK 15W-40 HD, CarQuest 51515
1966 Pontiac GTO, 53k
Out: Unknown/can't remember, NAPA 1258
In: HK 15W-40 HD, NAPA 1258
1967 Mustang, 390/C6, 40k
Out: Unknown/can't remember, CarQuest 51515
In: HK 15W-40 HD, CarQuest 51515
1971 Chevrolet EL Camino, 454, 16k
Out: Unknown/can't remember, FRAM PH30
In: HK 15W-40 HD, FRAM PH30
1971 AMC Javelin AMX, 401/3 speed, 97k
Out: Unknown/can't remember, STP S25
In: HK 10W-30, NAPA 1258
1978 Chevrolet Corvette, 350/auto, 46.9 actual miles
Out: Unknown, I last changed it in 2012. PH454
In: HK 10W-30, CarQuest 84099