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spence88mph spence88mph is offline
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Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,578
XR-1 Oil additive, anyone have any experience?

I met a dude selling this stuff, I dismissed it as snake oil but have since come across it in many forums and haven't heard a bad word. Kinda like the whole seafoam thing I looked up (we actually can't get that seafoam stuff over in Oz and they wouldn't send me any when I contacted the company...but that's another story).

Anyway, anyone had any experience with XR-1?
'89 911 M491+Turbo
'89 944 Turbo
'88 928S4
'18 C63S Coupe
Old 01-06-2009, 07:13 PM
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