I just got my motor built and now i have 500 miles on it with shitty oil in it. now should i put moble one in or use cheap oil again?
I changed the spark plugs already, and now im going to change the fuel filter. is it easy or what?

 

dude you should use the best oil possible if you want that engine to last

 

i put cheap oil in my motor in my built trans am till 1,500 miles then i put royal purple in. worked great and its still runs smooth after 25k miles. i changed my oil at 500 and then at 1000, and then i did the switch at 1,500 and then gave her hell.