1940 Chev truck (1968 427ci BBC) 37,737mi
out - Castrol GTX 20W50 (2000mi), filter Purolator L40084
in - Shell Rotella T6 5W40, filter K&N HP6002
out - Castrol GTX 20W50 (2000mi), filter Purolator L40084
in - Shell Rotella T6 5W40, filter K&N HP6002