I run 0w-40 in my M3 due to rod bearing issues with the S65 and S85 motors. Upgraded bearings are in my future......
I live in San Diego and it never gets too cold and the car is stored in a controlled temperature underground parking so my cold starts (I believe) are safe. I always wait until the revs settle down and I drive very slowly (never exceeding 4K rpms) until the oil temperature starts moving, it takes a while and I assume it will take longer now. Also I asked the blackstone tech as well and he said the viscosity is very similar when cold, from 5w to 10w that should now be a problem Just to confirm this I am looking at the technical sheets of the Pennzoil CCS viscosity 0w-40, 5w-40 and 10w-60 0w-40 5960 centipoise @-35celsius 5w-40 6300 centipoise @-30celsius 10w-60 6200 centipoise @-25celsius They are not the same temperature but I believe different oil grades get tested at different temperatures and you use them to compare it to other oils of the same weight. Anybody knows how to convert this in order to compare apples to apples?? Dan Loyola (whatheheck) I am sure you know this Sent from my iPhone using Tapatalk
Yes maybe the 15w is too thick I am taking pictures of current pressure and temperature so I can compare them (my oil is not new but still) From cold start my car goes to around 85psi and driving at 6k with the car at around 100 Celsius I get aprox 70psi (manual states between 70-90 at 6k when the car is 100 degrees Celsius) Image Unavailable, Please Login Image Unavailable, Please Login Sent from my iPhone using Tapatalk
I know this is pretty intuitive but outside temp does not effect the oil temp to justify a higher visocity unless we are speaking about over 100 degrees ..driving conditions make the big difference .. city traffic (stop and go) or running the car hard will make a significant increase in oil temp Look the gagues yourself and see if there is even a concern .... Temps in excess of 255f should consider switching ..don't judge by outside temp Sent from my Moto G (4) using Tapatalk
I still dont understand, what's the point of all of this? I think Ferrari would know their own engines and what's good for it. So why not just stick with Factory recommended weight?
10w-60 is factory recommended weight I am asking you if you know how to convert the temperature in different weights to see the real differences in thickness Sent from my iPhone using Tapatalk
Sorry, never seen that before. Here's captured from the 360 Owners Manual. Image Unavailable, Please Login
Workshop manual has more info than regular owners manual. You provided me that workshop manual Sent from my iPhone using Tapatalk
