So the Grand Prix is finally registered, insured, and back on the road
I swear the DMV works better in a pandemic than it does normally
It's an '83 305 SBC, with a CCC Quadrajet, still has that stupid factory dual bed pellet converter
Made in Canada I believe, there's a maple leaf stamped on the manifold
Most importantly, it's on the factory flat tappet cam that I've heard have a reputation of being soft and wearing down
Dad's been using off the shelf 5w/10w-30, before I knew about the lack of zinc and ZDDP, OTOH it hasn't gone 1k since 1988
I've since added a bottle of this Rislone stuff every oil change
Is there an oil off the shelf that'd be better suited to this old beast?
I swear the DMV works better in a pandemic than it does normally

It's an '83 305 SBC, with a CCC Quadrajet, still has that stupid factory dual bed pellet converter
Made in Canada I believe, there's a maple leaf stamped on the manifold

Most importantly, it's on the factory flat tappet cam that I've heard have a reputation of being soft and wearing down
Dad's been using off the shelf 5w/10w-30, before I knew about the lack of zinc and ZDDP, OTOH it hasn't gone 1k since 1988
I've since added a bottle of this Rislone stuff every oil change
![[Linked Image from images-na.ssl-images-amazon.com] [Linked Image from images-na.ssl-images-amazon.com]](https://images-na.ssl-images-amazon.com/images/I/51zHGFX6GjL._AC_SL1053_.jpg)
Is there an oil off the shelf that'd be better suited to this old beast?
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