0w20 to 10w30 oil 2019 V6 auto

Used to work in fuels and oils etc etc...

Firstly - When new (up to 50k) I would always stick to the grade on the oil cap.
Secondly - The car companies are obsessed with manipulating MPG figures and 0w20, 0w16 etc does that. There is no secret that these lighter grades give increased mileage but at an ever, ever so slight wear cost.
Third - The new engines require a harder working, higher quality oil, that often leans towards a lower viscosity, for VVT and VVI etc
Fourth - Consider your operating climate / conditions.

The Standard to meet warranty in the Tacoma 2.7 4 is ILSAC GF-6A. As well as Mobil 1 0w20, that is found in the Mobil 1 0w30 Advanced Fuel Economy for example... (why use any other brand - just saying).
ILSAC GF-6A is NOT found in the Mobil 1 0w30 ESP also Mobil 1. High quality oil specifications will cross over between grades.
Also the owners manual uses the wording 'recommends' not 'must do'
In hot environments and high speed and high workload I would recommend going up a viscosity level. 0w30 meets those requirements for warranty and added protection in heat and high workload.
0w30 is generally considered to be used where ambient air temperature is 36c / 97f. So if you live in these climates then why not give yourself the protection ?

In Summary Mobil 1 0w20 and 0w30 Advanced Fuel Economy (Any probably other brands you can research) have the required ILSAC GF-6A which is the only engine oil specification requirement mentioned in the Toyota manual.
Therefore being May in the South, currently using Mobil 1 0w30 AFE in my Tacoma 2.7 , If I lived further North (and in Winter) I would put 0w20 in.

Hope that helps.

 

Going to a 0W30 is fine but its not going to change anything for noise. The noises from this engine are not valvetrain but are the injectors and the high pressure fuel pump. Neither are affected by oil weights. I would stick with 0W-x oils as the cold flow is still a higher viscosity than any 10W-30 or 15W-40 oil when hot but is obviously thinner then the 10 and 15W when cold. This thinner when cold is good as others have mentioned to get oil to VVT, etc quicker on startup.

In short, no reason to switch oils as 1. it wont impact noise its just how modern engines are, and 2. there is zero evidence that 0W-20 is causing any longevity issues with these engines. Even used oil analysis (the actual proof) confirms this.


There are not L87's

 

There is a spring loaded pin that locks the gear to the cam until oil pressure builds to unlock...it's the lock pin that prevents the rattle.

 

There are definitely lifter noises posted here from time to time and they are for sure different from the HPFP and direct injectors/cleaning cycle noises. I have yet to hear any lifter tapping since switching to 10W-40, but I suppose summer will be the real test because that’s the time of year I hear it, if I do. I hope I’m out of this truck by then.

 

I’m gonna stick with factory spec on my 2019.