steve r

Before I used regular 10w30, Now i used royal purple 10w30....the noise is like a constant rattle, its not that loud and it doesnt get louder when i give gas

steve r

any ideas to why it would just start making noise after oil change?

mjr46

add some stp or lucas oil additive see if it clears up

steve r

would that that do?

z24stang

Go back to the regular 10 30 conventional oil.Forget about the "Ill add 10 horsepower oil".

aode08

I would inspect your old spark plugs to see if they were the exact same type as the ones you put in.

Sometimes colder spark plugs are used to prevent detonation/rattle that you are now hearing after the spark plug change.

Boosted5.slow

Sounds like a lifter, or a whrist pin, time for a new motor

Tberg725

Lol yeah, new motor cause a lifter went bad that make perfect sence

ponyboy302

id look more into the plugs being your problem .. although you should not change back to regular oil after using synthetic

Baddog

Judging by your back tires, to many "1st gear only" donuts? Try shifting into 2nd.J/K, nice car...Could be a mutitude of things, I'd have to hear it, sorry. Hope it's nothing major because that's a nice looking fox. Good luck.