What oil brand do you guys like or wich one is the best?

#1. Royal purple

#2. Castrol syntec

Castrol GTX. I see no point in running synthetic in something that will need an oil change in 3k miles. What I'm talking about is the amount of gas that enters the oil in a streetport. For that reason, I run 20w50, even in the fall. I'll see how it starts and runs when cold during the winter months ahead.

Castrol GTX 20W50 Wt. All year around... https://www.nopistons.com/forums/pub...#>/BURNOUT.gif https://www.nopistons.com/forums/pub...#>/BURNOUT.gif https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

quaker state for me https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

Castrol

i use Amsoil 10W30, 10W40 or 20W50 depending on the time of year

Valvoline 20/50 high milage

15w-40 in the summer



10w-30 regular Mobil in the fall



Nothing in the winter because it sit's on stands then :(

Castrol GTX 10w40