Oil in rebuilt engine

Jim Kilday

What oil should be used in my newly rebuilt engine? I've been using SAE 30 non-detergent which was supposedly used by the prior owner as well.



Should I be using any additives, ie zinc?



Thanks in advance.



Jim Kilday

[Deleted User]

I should leave this alone - but why would anyone want to use non-detergent oil in a newley rebuilt engine? Norm

53jetman

Likewise - why would anyone want to use SAE 30 in a splasher? I have used a premium multigrade HD oil in my '33 terraplane ever since I changed the oil the first time (after I dropped the pans and cleaned them).



Jerry

53jetman

Unknown

I have often wondered why Hudson speced non-detergent to begin with . Must have been a valide reason. Any chemists out there ?

Unknown

because that is all that was available back then. Don't use old tech oil in your car when the modern multigrade oils are so much more advanced and will do a better job for you.

Unknown

Jimalberta wrote:

because that is all that was available back then. Don't use old tech oil in your car when the modern multigrade oils are so much more advanced and will do a better job for you.

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Was just being inquisitive. Likely so when the splasher was invented { I wasn't there } but not so in the late 40's 50's that I do remember. There was as much controversy then in general as there is on this forum now. Reckon maybe I'll call LEE DAVIS, the old Hudson dealer here ,He's 94-95 or there about and ought to know, yeah he remembers ALL of it and loves to talk HUDSON .