The hotter the weather use the higher last two numbers
MoonRiverMe
2023-05-27 07:45:13
( reads)
https://penriteoil.com.au/knowledge-centre/Viscosity/237/what-is-an-sae-viscosity/180
20 can go hotter than 16 but if your summer never goes beyond what 16 can protect then 16 is enough.
山寺桃花
2023-05-27 08:36:00看来夏天 20 ， 冬天16. 这是要逼迫换两次油啊