Wally World 10W30, or 5W30. If I feel really rich I'll even pop for the synthetic version.

40 years of driving and millions of miles later I have ZERO oil related engine failures. Change it regular and always use a good filter.

Nothing fancy and these "boutique" oil makers are riding an urban myth all the way to the bank.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.