I own a 1995 Intrepid 3.5l, and I'm wondering what would be a good first performance mod (preferably one that's budget-friendly). Keep in mind I live in California, so there may be some limitations there.
What's the best way to use Seafoam?
Do you spray it into your intake while engine running? Or just dump it into your gas tank?
How about adding it to your oil?
I use the spray, which you spray in through the throttle body with the engine running. The best way to do it in my experience is to have someone in the car holding the engine at around 2000 rpm while you spray in the Seafoam.