Re: Mike's 53 Clipper

Posted by Tobs On 2017/6/6 14:29:28

I cringe at bringing this up here, but I am currently running 10w30 that has an api rating of SF. This is actually what is known as low quality oil according to Richard Michells book about choosing oil. It is from liqui moly which is supposed to be a quality oil supplier.
I would like to use SJ middle or Sl/SM/SN high quality oil. In germany that pretty much means 5w30 oil.
Now, at low temps, 5w30 is still thicker than straigt 20 and even thicker than straight 10 oil which packard would reccomend for temps down to freezing.
Anybody run 5w30? For most of my life I would have said this is crazy, but looking at viscosity charts, I start to think it is reasonable. Any other educated opinions are welcome. Thanks.