The're both going to be up to 1% ash
The Rotella is listed here.
https://bobistheoilguy.com/forums/threads/voa-diesel-oil-database.362789/
And Motorcraft 10w-30 HDEO listed here. Since it appears there is no gasoline rating on this oil it's going to have up to that 1%.
http://pqiadata.org/Ford_Motorcraft__SDF_10W30.html
I think you meant the opposite? I'm under the knowledge that wet clutch requirements in oil use LESS friction modifiers.
Thanks I'll check those out.
Windchill is purely a phenomenon that only applies to bare skin, not to inanimate objects. If it’s -30*F with a windchill of -75*F, the oil that’s in that exposed cold engine is no colder than -30*F. Period.
Pretty much. But to be more specific, wind chill affects ANY objects that are generating heat internally to stay warm whether they are living things or not.
For example: If ambient temp is 30F outside and there is no wind, your HVAC system at home will run less than it does at 30F with a 20 MPH breeze blowing. The same concept is how engines in vehicles stay cool. With air passing over the inanimate engine components and radiator, heat is discharged more quickly. That's why there's a fan.