10/30 isn't 1st choice for any new car.
Wow,
I'm surprised because 10W30 isn't the 1st choice-in the manual- on any new car I've have seen in the last 5 years.5w30 and now 5W20 are the 1st choice oils in all new car manuals.
Does anyone know of a recent car-not a diesel or a truck-that calls for 10W30 as the 1st choice??
What a DF! Charlie
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