Main & Rod Bearing Spec

Only if the clearances are tighter.

 

I switched to 0w-30 Mobil euro formula in my 2023. Have 53k so far. Runs great. The euro stuff has a lower pour point in the cold and a slightly thicker viscosity at 100c than most 5w-30 oils. Probably the best compromise for protection and start up wear reduction.

 

From roughly 9cst to 5cst so not good, but there was a study done a while back by Toyota I thought you were good down to 2cst and then the bearings just ate themselves. Keep in mind the bearing oil temp is much higher than the pan oil temps. I'm also curious what the oil temp inside the high speed turbo bearings is, I bet it's really high.

https://www.widman.biz/English/Calculators/Graph.html