By 
PaPa Mike, 
a 
Verified Buyer 
from 
Winchester Va 
on 
April 23, 2017
Every time I use this additive my mpg always increase by 1 to1.5 ! I'm surprised at how even top tier gasoline can use extra cleaning for a better burn.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
can tell a difference
By 
Matt, 
a 
Verified Buyer 
from 
Saint Louis, Mo 
on 
April 22, 2017
Used Amsoil PI in a number of cars and every time I use I get better gas mileage and better throttle response.
I have a 2005 Chevy 3500 with a 6.0 L it was getting 6 mpg . Cleaned air filter and put this in tank it went to 12.6 mpg and on next fill up , I got 9.6 mpg (I did pull my trailer ) that week but will try the pi fuel additive again
2007 Envoy with 5.3 V8. Changed spark plugs at 110,000 mi. Looked excellent! No injector issues or fuel pump problems. Get 18 mpg regularly. All lubricants in this vehicle are Amsoil.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Awesome
By 
Gospelcoach, 
a 
Verified Buyer 
from 
San Diego 
on 
March 09, 2017
This product is amazing. I have been using it for three years now, and the results are the exactly what is promised. I used a bottle every 3000 miles in all three of my cars.
Put it in gas as per directions, drove it around in my 2012 work van, 140,000km. Normal average consumption is 11.8 to 12.4L/100km, and I fell in that range for the treatment tank, and the following tank. Can't say if it cleaned anything out, but I can say it didn't help mileage.
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