I've continued using conventional oil with ZDP additive. Just bought the Driven oil for the 496 in the Chevelle. I haven't changed it yet, so no opinion, but the Gibb's oil has a good reputation as well.
__________________
Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
|