Re: engine oil

Posted by Larry Jenkins on December 04, 1997 at 15:16:48

In Reply to: engine oil
posted by Dick Riemer on December 04, 1997 at 14:10:08

: Havn't seen this question answered yet.
: What kind of engine oil should be used in Model A's
: thanks for any advice.
Hi Dick..
There has been many articles and discussions over the years about non-detergent versus detergent motor oils, and the abiguous (at best) results differ depending on who's talking or who's writing the article.
Not being a Lubrication Engineer, I will give you my opinions.
If I had an engine with a lot of miles on it that uses non-detergent oils, I would continue to use it, but definitely add an oil filter.
I had my engine rebuilt, and I use Quaker State 10 W 30 detergent oil with an API SH rating with an oil filter.(Think there might even be an SI rating by now).
I don't recall ever hearing or reading proof that detergent oils are bad for the babbit bearing material in the Model A engine.
Think you might have opened up the can!
Larry Jenkins

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