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#14: 08-15-2011, 10:28 AM
 
 cbt299
Title: Member
Location: Blacksburg, VA
Car: 99' Legacy SUS
Posts: 88
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Quote:
Originally Posted by Baddog View Post
The RP did cure a halt in the engine. Not sure what it was but around 4k RPM's it felt like the engine fell flat on its face. I put in RP and it even feels smoother in the low end and doesn't fall flat on its face anymore.

I will give AMSoil a try next time. I haven't read many problems with RP and it really has helped my engine out. So I will stand by it for that fact.
how often do you change with RP?