If you are an actual motor person. One who either specs custom built engines, or builds your own for a performance application and then drives and maintains that application; what oil do you run and why?
I build moderately old school American V-8's for fun cars, mostly on the street. I've been doing this on and off for about 5 decades. I break in those engines on Chevron Supreme 10W-40. I change oil & filter at 100 miles and again at 500. Then I run yearly OCI's as most of these cars and trucks do not get 7,500 a year.
I have used Delo400 as my go-to oil for decades for general use and that includes a type of engine I build that I call a drooler. That is it has extra internal oiling points and runs a HV pump with the lowest pressure spring I can install so that it max's at ~50 psi.
When I was young and did not know better, I swore oil pressure was important so I wasted power driving high pressure systems and the associated wear on distributor gears and broken oil pump drives. At some point the light went on and I quit doing that ...
So my oils are Chevron Supreme and Delo400. I am adding Valvoline MaxLife as a third oil...
So how bout you'all ???
I build moderately old school American V-8's for fun cars, mostly on the street. I've been doing this on and off for about 5 decades. I break in those engines on Chevron Supreme 10W-40. I change oil & filter at 100 miles and again at 500. Then I run yearly OCI's as most of these cars and trucks do not get 7,500 a year.
I have used Delo400 as my go-to oil for decades for general use and that includes a type of engine I build that I call a drooler. That is it has extra internal oiling points and runs a HV pump with the lowest pressure spring I can install so that it max's at ~50 psi.
When I was young and did not know better, I swore oil pressure was important so I wasted power driving high pressure systems and the associated wear on distributor gears and broken oil pump drives. At some point the light went on and I quit doing that ...
So my oils are Chevron Supreme and Delo400. I am adding Valvoline MaxLife as a third oil...
So how bout you'all ???