I have had air cooled 911 for a while and recently picked up a low mile 996 for a daily driver. After doing a bunch of reading it seems like a lot of people talk about using 0W-40 and then other people saying it’s better to use 5W-40 or 5W-50.
And I get that oil is a whole huge rabbit hole to go down but when I look in my owners manual for temps higher than 50 F it specifies from 10W-40 to 15W-50. Even for cold weather the lightest it recommends is 5W-30…. So WTF are people using 0W-40? What am I missing?
For what it’s worth I live in the Deep South and we will be lucky if it gets below 75 for the next four months. Based on the owners manual it seems like I should be running 15W-50? Did I somehow misunderstand something?
My local Wal Mart has 5 quart jugs of Mobil 1 in 5W-40 and 15W-50… which one?
