Originally Posted By: Merkava_4
I'd like to listen to one of those new GM truck engines running with 0W-20. I can't imagine them being the least bit quiet.
The direct injection is the source of most of the noise on these motors. I can't say I notice any difference in noise when the motor is cold (and oil is thick) compared to when it's fully up to temp (oil is warm).
Originally Posted By: turtlevette
I guess its ok for me to start using 0W-20 in my older 5.3.
I've already mixed some 0w-20 quarts in with my 0W-30. 2 of 6
The 2014+ GM EcoTec 5.3 L83 is completely new compared to the previous generation Vortec 5.3 It was designed with a 20 weight in mind while the Vortec was designed for 30 weight. Not to say you coudn't run a 20 weight but it's not advisable.
I'd like to listen to one of those new GM truck engines running with 0W-20. I can't imagine them being the least bit quiet.
The direct injection is the source of most of the noise on these motors. I can't say I notice any difference in noise when the motor is cold (and oil is thick) compared to when it's fully up to temp (oil is warm).
Originally Posted By: turtlevette
I guess its ok for me to start using 0W-20 in my older 5.3.
I've already mixed some 0w-20 quarts in with my 0W-30. 2 of 6
The 2014+ GM EcoTec 5.3 L83 is completely new compared to the previous generation Vortec 5.3 It was designed with a 20 weight in mind while the Vortec was designed for 30 weight. Not to say you coudn't run a 20 weight but it's not advisable.