Anyone use auto-rx in their 7?
 

www.auto-rx.com is the website. Or Seafoam?
Just curious.

guess not...;)

I have used it in my 95' Millenia and my 98' 540i BMW. Both were more a peice of mind than bad sludge removal. I believe that anybody who has an RX7 turbo and has used dino oil its whole life, should use it. NA 7's with frequent oil changes are probably O.K. Any other cars that are over 3 years old or have more than 60k on dino oil should use it.

Once rebuilt, my 7 has used nothing but synthetic and have it changed every 2 to 3k. Sludge should never be an issue.