Seafoam vs. Auto-Rx

[Mlarsen]

Thank you.

It will clean your o2 sensor and cat, but other than that, it's poo.

If you have something wrong with your car, what makes you think pouring a can of anything will fix it?

Stuck injectors? take em out and clean em.
Miss? Go buy new spark plugs.

Seafoam does rid some issues but it's all temporary.

^This.

Yeahhh.... Seafoam isn't that great. Most people do more damaged than good when using seafoam. Go into any legit shop and ask for a Seafoam treatment, see what happens.

[priapism]

I've Seafoamed a ton of cars. It's fun! But the only car we noticed a real difference in was a Lexus that had 90k miles and hadn't really been maintained much. It was idling rough and had an occasional misfire. I ran some Seafoam through the intake and it coughed up a ton of smoke and never triggered the CEL again. The rest of the cars it just generated a ton of smoke. I will say the Volvo I did it on had a pristine crankcase when I looked in there but I didn't see much of a difference in performance.