Thread: Fight back on Oil Co's. Gas at almost $5.00 now.
View Single Post
  #4 (permalink)  
Old 07-03-2008, 03:13 AM
Fullcrum Fullcrum is offline
Senior Member
  
Join Date: Oct 2007
Posts: 1,083
Fullcrum is on a distinguished road
Default
He says mileage will improve 30-70%.

Quite a range. And not quite double. But I'm sure it helps. Cost is not mentioned.
Reply With Quote