Regarding 10w60 - no matter which brand - the technical data sheets show a huge viscosity at cold temps, --> even its a 10w oil.
Especialy when driving in NE winters or at cold temps outside I wouldn't choose a 10w60.
At normal use/driving, means not on the track .... as long as the state of your engine is flawlessly and if you change your oil in the suggested intervals you can choose all dino oils from 5w40 over 15w40, 20w50 up to 10w60.
Beside a good ZDDP value I would choose the one with the lowest viscosity at coldstart and enough viscosity when hot. So when cold, all importand parts in the engine get lubricated as fast as possible.
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Originally Posted by kyngfish
No idea about moly vs. classic. But it’s not the same oil.
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If you refer to Liqui Molys regular oil vs their classic one then the classic one comes with the API SF classicfication. Means also a higher ZDDP value beside other factors.
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I eventually just wrote to Liqui-Moly and they recommended 10w60 - they actually recommended Ceratec
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Please keep in mind, ... if asking oil companies, beside the correct oil "you really need" they recommend on top what lets them make more money.
And .... if you choose Liqui Moly oils ... you should choose the much cheaper Meguin oils (not shure if available in the US) as its "exact" the same product but with a Liquiy Moly branding – as Meguin produces the oil range for LM cause ... Meguin is part of the LM company.