Another oil weight question.....

[bandit0067]

Hi Guys, I bought a high mileage 2015 5.3 a while back and only have driven it occasionally. Im late to understanding all the info on the late model engine failures and recalls about the late model engines. My limited take a way on these failures seem to suggest GM is suggesting that the very low weight engine oil is primarily responsible for these failures.

My engines service manual states to use 0/20 weight. Would it be wise to up the weight to 5/20 or something else. Or just keep using 0/20.

The truck has 200k miles on it and appears to be the original unmolested engine. Have no records indicating ANY work has ever been done to the engine so may have original lifters still operating as per the AFD system. thanks